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Sample records for agreements university pi

  1. University-Industry Research Agreements: Major Negotiation Issues.

    ERIC Educational Resources Information Center

    Atkinson, Stephen

    1985-01-01

    Three categories of issues about which universities and industry often differ in research agreements are discussed: (1) major philosophical differences between universities and for-profit organizations; (2) complex intellectual property law and regulations of such forms as computer software and biological materials; and (3) differences in drafting…

  2. Collective Bargaining Agreement between Niagara University and Niagara University Lay Teachers Association 1987-1989.

    ERIC Educational Resources Information Center

    Niagara Univ., Niagara Falls, NY.

    The collective bargaining agreement between Niagara University (New York) and the Niagara University Lay Teachers Association, a chapter of the American Association of University Professors, covering the period 1987 to 1989 is presented. The agreement covers the following items: recognition, union security, dues checkoff, discrimination policy,…

  3. Agreement between Oakland University and the Oakland University Chapter, American Association of University Professors, 1985-88.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Oakland University and the University's chapter (370 members) of the American Association of University Professors (AAUP) covering the period 1985-1988 is presented. Items covered in the agreement include: definitions and recognition of AAUP, academic titles, AAUP rights, university management,…

  4. Articulation Agreements between High Schools, Community Colleges, and Universities.

    ERIC Educational Resources Information Center

    Illinois Community Coll. Board, Springfield.

    Designed to assist college officials in developing and revising articulation agreements, this report describes specific program articulation efforts between Illinois high schools, community colleges, and public and private universities. Data presented were drawn from a survey of 102 public and private community colleges, which resulted in 94…

  5. Agreement Between Central Michigan University and Central Michigan University District of Michigan Association of Higher Education.

    ERIC Educational Resources Information Center

    Central Michigan Univ., Mount Pleasant.

    This document presents the agreement between the Central Michigan University (CMU) and Central Michigan University, District of Michigan Association of Higher Education. The agreement covers the purpose and intent, recognition, aid to other collective bargaining agents, deduction of district dues and initiation fees, special conferences, grievance…

  6. Faculty Agreement 1983-1985: Oakland University and the Oakland University Chapter of the American Association of University Professors.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Oakland University and the Oakland University Chapter (370 members) of the American Association of University Professors (AAUP) covering the period March 1, 1983-August 14, 1985 is presented. Items covered in the agreement include: definitions and recognition of AAUP; work of the bargaining unit;…

  7. Agreement. Central State University and the American Association of University Professors, Central State University Chapter. 1985-1988.

    ERIC Educational Resources Information Center

    Central State Univ., Edmond, OK.

    The collective bargaining agreement between Central State University and the university's chapter (295 members) of the American Association of University Professors (AAUP), covering the period 1985-1988, is presented. Items covered in the agreement include: academic freedom, nondiscrimination, affirmative action plans, maintenance of practices,…

  8. 1988-91 Agreement between Oakland University and the Oakland University Chapter, American Association of University Professors.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    This document presents the 1988-91 agreement between Oakland University (Michigan) and the Oakland University Chapter of the American Association of University Professors. The following 32 articles are detailed: definitions; recognition; work of the bargaining unit; academic titles; association rights; University management; faculty employment,…

  9. Sponsored research agreements, university and government licensing, and clinical trial agreements: special contractual and intellectual property rights considerations.

    PubMed

    Somers, Jeffrey P

    2003-01-01

    This article addresses contractual and intellectual property considerations that frequently arise in the drafting and negotiation of sponsored research agreements ("SRAs"), license agreements with universities (and other non-profit organizations) and the federal government, and clinical trial agreements. Each of these subjects is addressed separately, but most of the article is devoted to sponsored research, which is the driver for much of the innovation in the medical and life sciences industries.

  10. Agreement between University of Cincinnati and AAUP, University of Cincinnati Chapter, September 1, 1984 to August 31, 1986.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between the University of Cincinnati and the University of Cincinnati chapter (1,750 members) of the American Association of University Professors (AAUP) covering the period September 1, 1984 to August 31, 1986 is presented. Items covered in the agreement include: recognition and description of the bargaining…

  11. Agreement between Central State University and the American Association of University Professors Central State University Chapter. September 1, 1988-August 31, 1991.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    This document presents the agreement between Central State University and the Central State University Chapter of the American Association of University Professors (AAUP) for the period September 1, 1988-August 31, 1991. The contract details the following 48 articles: agreement; agreement construction; recognition of the bargaining unit; AAUP…

  12. Agreement Between Michigan State University and Lodge 141, Fraternal Order of Police, Michigan State University Division, July 1, 1974.

    ERIC Educational Resources Information Center

    Michigan State Univ., East Lansing.

    This agreement, entered into July 1, 1974, is between the Board of Trustees of Michigan State University and Lodge 141 of the Fraternal Order of Police, Michigan State University Division. It is the intent and purpose of this agreement to assure sound and mutually beneficial working and economic relationships between the parties, to provide an…

  13. Agreement between University of Hawaii Professional Assembly and the Board of Regents of the University of Hawaii, 1987-1989.

    ERIC Educational Resources Information Center

    National Education Association, Washington, DC.

    The collective bargaining agreement between University of Hawaii Professional Assembly and the Board of Regents of the University of Hawaii for the period 1987-1989 is presented. Items covered in the agreement include: unit recognition, outside employment, exemption from tuition, duty period, paid and unpaid leaves of absence, sabbatical leaves,…

  14. Indigenous Employment and Enterprise Agreements in Australian Universities

    ERIC Educational Resources Information Center

    Brown, Cath

    2014-01-01

    Considering the benefits that enterprise agreements (EAs) can bring to Indigenous employees, this paper considers the question of whether respectful cultural policies that are aligned with reconciliation and included in EAs can be achieved to Close the Gap on reducing Indigenous disadvantage. A document analysis of EAs at eight Australian…

  15. Agreement Between the State of New York and United University Professions, Inc.

    ERIC Educational Resources Information Center

    New York

    Contained in this document is the agreement between the State of New York and the United University Professions, Incorporated. The duration of the agreement is from July 1, 1974 through June 30, 1976. Articles of the agreement cover: academic freedom; grievance procedures; employee organization leave; discipline; travel allowance; sabbatical…

  16. CP asymmetry of B{yields}K{pi} in SUSY models with non-universal A-terms

    SciTech Connect

    Khalil, Shaaban

    2008-11-23

    We show that the recent results of 5.2{sigma} difference between the CP asymmetries of B{sup 0}{yields}K{sup +}{pi}{sup -} and B{sup +}{yields}K{sup +}{pi}{sup 0} decays can be accommodated in supersymmetric models with non-universal A-terms.

  17. Agreement between University of Cincinnati and AAUP, University of Cincinnati Chapter, September 1, 1986 to August 31, 1989.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between the University of Cincinnati and the university chapter of the American Association of University Professors (AAUP) covering the period September 1, 1986 through August 31, 1989 is presented. The 42 articles, grouped into seven categories, cover the following: (1) basic principles (recognition and…

  18. Agreement between Wayne State University and the Wayne State University Chapter of the American Association of University Professors, August 1, 1986-July 31, 1988.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Wayne State University and the Wayne State University Chapter of the American Association of University Professors covering the period August 1, 1986-July 31, 1988 is presented. Items covered in the agreement include: personnel classification, union rights and privileges, administration rights, deduction…

  19. Agreement between Eastern Michigan University and the Eastern Michigan University Chapter of the American Association of University Professors, September 1, 1985-August 31, 1987.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Eastern Michigan University and the Eastern Michigan University Chapter of the American Association of University Professors (AAUP) covering the period September 1, 1985-August 31, 1987 is presented. Items covered in the agreement include: definitions, unit recognition, management rights, union rights,…

  20. The Universal Multizone Crystallizator (UMC) Furnace: An International Cooperative Agreement

    NASA Technical Reports Server (NTRS)

    Watring, D. A.; Su, C.-H.; Gillies, D.; Roosz, T.; Babcsan, N.

    1996-01-01

    The Universal Multizone Crystallizator (UMC) is a special apparatus for crystal growth under terrestrial and microgravity conditions. The use of twenty-five zones allows the UMC to be used for several normal freezing growth techniques. The thermal profile is electronically translated along the stationary sample by systematically reducing the power to the control zones. Elimination of mechanical translation devices increases the systems reliability while simultaneously reducing the size and weight. This paper addresses the UMC furnace design, sample cartridge and typical thermal profiles and corresponding power requirements necessary for the dynamic gradient freeze crystal growth technique. Results from physical vapor transport and traveling heater method crystal growth experiments are also discussed.

  1. Agreement Between Bard College and the Bard College Chapter of the American Association of University Professors.

    ERIC Educational Resources Information Center

    Bard Coll., Annandale-on-Hudson, NY.

    This agreement between Bard College and the Bard College Chapter of the American Association of University Professors covers the period from April 24, 1973 until June 30, 1974. The articles of the agreement cover recognition tenure, adequate cause for dismissal, retirement, contractual obligations, academic policy, research and travel,…

  2. Agreement between The State of New York and United University Professions, 1985-1988.

    ERIC Educational Resources Information Center

    New York State Executive Office, Albany.

    The collective bargaining agreement between The State of New York and United University Professions, an affiliate of the American Federation of Teachers, for 1985 to 1988 is presented. Items covered in the agreement include: unit recognition, grievance procedure, arbitration procedure, grievance appeals, labor-management meetings, academic…

  3. Agreement between the Regents of the University of Minnesota and the University Education Association, July 1, 1984-June 30, 1987.

    ERIC Educational Resources Information Center

    National Education Association, Washington, DC.

    The collective bargaining agreement between the Regents of the University of Minnesota and the University Education Association of the National Education Association, covering the period July 1, 1984-June 30, 1987 is presented. The Association chapter consists of 329 full-time and part-time faculty at the Duluth and Waseca campuses. Items covered…

  4. Agreement between Wayne State University and the Wayne State University Chapter of the American Association of University Professors, August 1, 1983-July 31, 1986.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Wayne State University and the Wayne State University Chapter of AAUP covering the period August 1, 1983-July 31, 1986 is presented. Items covered in the agreement include: personnel classification, administration rights, union rights, union privileges, deduction of union dues and fees,…

  5. Agreement between Fairleigh Dickinson University and Fairleigh Dickinson University Council of American Association of University Professors Chapters, September 1, 1982-August 31, 1984.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Fairleigh Dickinson University and Fairleigh Dickinson University Council (495 members) of the American Association of University Professors (AAUP) chapters covering the period September 1, 1982-August 31, 1984 is presented. Items covered are: unit recognition and definitions; nondiscrimination; base…

  6. Agreement Between Fairleigh Dickinson University and Fairleigh Dickenson University Council of American Association of University Professors Chapter, September 1, 1977-August 31, 1979.

    ERIC Educational Resources Information Center

    1977

    The negotiation agreement covers nondiscrimination, salary, fringe benefits, leave of absence, faculty workload, working conditions, calendars and schedules, department governance, college and campus governance, the university senate, grievance and arbitration procedures, research and travel, financial exigency, employment security, association…

  7. Agreement between the State of New York and United University Professions--1988-1991.

    ERIC Educational Resources Information Center

    New York State Executive Office, Albany.

    The collective bargaining agreement between the State of New York and United University Professions, an affiliate of the American Federation of Teachers, for the period July 1, 1988 to June 30, 1991 is presented. The contract's 50 articles cover the following: recognition, unchallenged representation, exclusive negotiations, definitions, policies,…

  8. Collection of Agreements Concerning the Equivalence of University Qualifications. A Reprint of Texts Published by the International Association of Universities Between 1954 and 1961.

    ERIC Educational Resources Information Center

    International Association of Universities, Paris (France).

    This volume reproduces the texts of Agreements concerning the equivalence of university qualifications. The contents are divided into three sections. The first and principal section contains bilateral Agreements; the second, the multilateral Agreements; and the third, Agreements dealing more specifically with the right to exercise a profession.…

  9. Collective Bargaining Agreement by and between Hofstra University and the Hofstra Chapter of the American Association of University Professors, September 1, 1985-August 31, 1988.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Hofstra University and the Hofstra University Chapter of the American Association of University Professors (AAUP) covering the period September 1, 1985-August 31, 1988 is presented. Items covered in the agreement include: definitions and unit recognition; faculty statutes and faculty policy series; the…

  10. Collective Bargaining Agreement by and between Hofstra University and the Hofstra Chapter of the American Association of University Professors, September 1, 1982-August 31, 1985.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Hofstra University and the Hofstra University Chapter (340 members) of the American Association of University Professors (AARP) September 1, 1982-August 31, 1985 is presented. Items covered in the agreement include: definitions and recognition of AAUP; faculty statutes and faculty policy series, the…

  11. Agreement between the University of Hawaii Professional Assembly and the Board of Regents of the University of Hawaii, 1983-1985.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between the University of Hawaii Board of Regents and the University of Hawaii Professional Assembly covering the period July 1, 1983-June 30, 1985 is presented. The American Association of University Professors affiliated union has 2,810 members. Items covered in the agreement include: unit recognition,…

  12. Agreement between Board of Governors of State Colleges and Universities and the University Professionals of Illinois, B.O.G. Council, Local 4100, 1985-88, and Agreement Amendments, 1986-87.

    ERIC Educational Resources Information Center

    Illinois Board of Governors of State Colleges and Universities, Springfield.

    The collective bargaining agreement between the Board of Governors of State Colleges and Universities and the Board of Governors Council, University Professionals of Illinois, an affiliate of the National Education Association, for the period 1985-1988 is presented. Items covered in the agreement and amendments include: unit recognition,…

  13. Collective Bargaining Agreement between Kent State University and United Faculty Professional Association, September 16, 1987-September 16, 1990.

    ERIC Educational Resources Information Center

    United Faculty Professional Association.

    The collective bargaining agreement between Kent State University and the United Faculty Professional Association covering the period September 16, 1987-September 16, 1990 is presented. Items covered in the agreement include: recognition and dues deduction, management rights, faculty involvement in university governance, faculty participation in…

  14. Critical Behavior of CP{sup 1} at {theta}={pi}, Haldane's Conjecture, and the Relevant Universality Class

    SciTech Connect

    Azcoiti, Vicente; Di Carlo, Giuseppe; Galante, Angelo

    2007-06-22

    Using an approach to analyze the {theta} dependence of systems with a {theta} term we recently proposed, the critical behavior of CP{sup 1} at {theta}={pi} is studied. We find a region outside the strong coupling regime where Haldane's conjecture is verified. The critical line, however, does not belong to the universality class of the Wess-Zumino-Novikov-Witten model at topological coupling k=1 since it shows continuously varying critical exponents.

  15. Collective Bargaining Agreement: University System of New Hampshire and Keene State College Education Association, July 1, 1985-June 30, 1987.

    ERIC Educational Resources Information Center

    Keene State Coll., NH.

    The collective bargaining agreement between the University System of New Hampshire and Keene State College Education Association, an affiliate of the National Education Association (NEA), covering the period July 1, 1985 to June 30, 1987, is presented. Items covered in the agreement include: a memorandum of agreement dated October 26, 1985;…

  16. Assessing the Universal Structure of Personality in Early Adolescence: The NEO-PI-R and NEO-PI-3 in 24 Cultures

    ERIC Educational Resources Information Center

    De Fruyt, Filip; De Bolle, Marleen; McCrae, Robert R.; Terracciano, Antonio; Costa, Paul T., Jr.

    2009-01-01

    The structure and psychometric characteristics of the NEO Personality Inventory-3 (NEO-PI-3), a more readable version of the Revised NEO Personality Inventory (NEO-PI-R), are examined and compared with NEO-PI-R characteristics using data from college student observer ratings of 5,109 adolescents aged 12 to 17 years from 24 cultures. Replacement…

  17. Fourth Master Agreement between the University of the District of Columbia and University of the District of Columbia Faculty Association/NEA.

    ERIC Educational Resources Information Center

    District of Columbia Univ., Washington, DC.

    The collective bargaining agreement between the University of the District of Columbia and the University of the District of Columbia Faculty Association, an affiliate of the National Education Association, for the period October 1, 1988 to September 30, 1993 is presented. The agreement's 33 articles cover the following: purpose and intent, scope…

  18. Draft Master Agreement between the University of the District of Columbia Faculty Association/NEA and the University of District of Columbia, October 1, 1985-September 30, 1987.

    ERIC Educational Resources Information Center

    District of Columbia Univ., Washington, DC.

    The collective bargaining agreement between the University of the District of Columbia and the University of the District of Columbia Faculty Association Chapter (600 members) of the National Education Association covering the period October 1, 1985-September 30, 1987 is presented. Items covered in the agreement include: unit scope and…

  19. Agreement between Rhode Island Board of Governors and University of Rhode Island Chapter, American Association of University Professors, 1983-1985.

    ERIC Educational Resources Information Center

    Rhode Island Univ., Kingston.

    The collective bargaining agreement between Rhode Island Board of Governors and University of Rhode Island Chapter (710 members) of the American Association of University Professors (AAUP) covering the period July 1, 1983-June 30, 1985 is presented. Items covered in the agreement include: definitions and AAUP recognition, management rights,…

  20. Agreement between Rhode Island Board of Governors and University of Rhode Island Chapter American Association of University Professors, July 1, 1985-June 30, 1987.

    ERIC Educational Resources Information Center

    Rhode Island Univ., Kingston.

    The collective bargaining agreement between the Rhode Island Board of Governors and the University of Rhode Island Chapter of the American Association of University Professors (AAUP) covering the period July 1, 1985-June 30, 1987 is presented. Items covered in the agreement are: unit recognition, management rights, nondiscrimination, the…

  1. University of Detroit and the University of Detroit Professors' Union Affiliated with the MEA/NEA. Collective Bargaining Agreement, January 15, 1985-August 15,1986.

    ERIC Educational Resources Information Center

    National Education Association, Washington, DC.

    The collective bargaining agreement between the University of Detroit and the University of Detroit Professors' Union (183 members), an affiliate of the National Education Association and the Michigan Education Association, covering the period January 15, 1985-August 15, 1986 is presented. Items covered in the agreement include: unit recognition;…

  2. Assessing the Universal Structure of Personality in Early Adolescence: The NEO-PI-R and NEO-PI-3 in 24 Cultures

    PubMed Central

    De Fruyt, Filip; De Bolle, Marleen; McCrae, Robert R.; Terracciano, Antonio; Costa, Paul T.

    2010-01-01

    The structure and psychometric characteristics of the NEO-PI-3, a more readable version of the NEO-PI-R, are examined and compared with NEO-PI-R characteristics using data from college student observer ratings of 5,109 adolescents aged 12 to 17 from 24 cultures. Replacement items in the PI-3 showed on average stronger item/total correlations and slightly improved facet reliabilities compared with the NEO-PI-R in both English- and non-English-speaking samples. NEO-PI-3 replacement items did not substantially affect scale means compared with the original scales. Analyses across and within cultures confirmed the intended factor structure of both versions when used to describe young adolescents. We discuss implications of these cross-cultural findings for the advancement of studies in adolescence and personality development across the lifespan. PMID:19419953

  3. Agreement between the City University of New York and the Professional Staff Congress, City University of New York, September 1, 1982-August 31, 1984.

    ERIC Educational Resources Information Center

    Professional Staff Congress of the City Univ. of New York, NY.

    The collective bargaining agreement between the City University of New York (CUNY) and the Professional Staff Congress of City University of New York covering the period September 1, 1982-August 31, 1984 is presented. The chapter, which has 9,200 members (including part-timers), is affiliated with the American Association of University Professors…

  4. Agreement between State University Board and Inter-Facullty Organization/Minnesota Education Association, July 1, 1985-June 30, 1987.

    ERIC Educational Resources Information Center

    Minnesota State Univ. Board, St. Paul.

    The collective bargaining agreement between the Minnesota State University Board and the Inter-Faculty Organization of the Minnesota Education Association, an affiliate of the National Education Association with 2,000 members, covers the period July 1, 1985-June 30, 1987. Items covered in the agreement include: definitions and unit recognition,…

  5. Agreement 1976-1979 Between Rider College and the Rider College Chapter of the American Association of University Professors.

    ERIC Educational Resources Information Center

    Rider Coll., Trenton, NJ.

    This agreement recognizes the American Association of University Professors as the collective bargaining unit for the part- and full-time faculty and some members of the college library and athletic staffs. Covered in the agreement are such matters as non-discrimination, affirmative action, academic freedom, association privileges, promotion,…

  6. Agreement between Bard College and the Bard College Chapter of the American Association of University Professors [1988-1989].

    ERIC Educational Resources Information Center

    Bard Coll., Annandale-on-Hudson, NY.

    The agreement between Bard College, New York, and the Bard College Chapter of the American Association of University Professors (AAUP) covering the period 1988 to 1989 is presented. The agreement covers the following items: recognition, tenure, cause for dismissal, hearings in the event of dismissal, termination for financial exigency, other…

  7. Collective Bargaining Agreement between the University of Connecticut Board of Trustees and the University of Connecticut Chapter of the American Association of University Professors, July 1, 1984-June 30, 1986.

    ERIC Educational Resources Information Center

    Connecticut Univ., Storrs. Board of Trustees.

    The collective bargaining agreement between the University of Connecticut Board of Trustees and the University of Connecticut Chapter (1,410 members) of the American Association of University Professors (AAUP) covering the period July 1, 1984-June 30, 1986 is presented. Items covered in the agreement include: unit recognition, exclusions, academic…

  8. Collective Bargaining Agreement between the University of Connecticut Board of Trustees and the University of Connecticut Chapter of the American Association of University Professors, July 1, 1986-June 30, 1989.

    ERIC Educational Resources Information Center

    Connecticut Univ., Storrs. Board of Trustees.

    The collective bargaining agreement between the University of Connecticut Board of Trustees and the University of Connecticut Chapter of The American Association of University Professors (AAUP) covering the period July 1, 1986-June 30, 1989 is presented. Items covered in the agreement are: recognition, exclusions, academic freedom, governance,…

  9. Collective Bargaining Agreement between the Board of Regents of the University of Nebraska and the University of Nebraska at Omaha Chapter of the American Association of University Professors for the Period July 1, 1985-June 30, 1986.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between the University of Nebraska Board of Regents and the University of Nebraska Chapter of the American Association of University Professors (AAUP) covering the period July 1, 1985-June 30, 1986 is presented. Items covered in the agreement are: definition of terms; unit recognition and description; academic…

  10. Collective Bargaining Agreement between University of Nebraska at Omaha Chapter, American Association of University Professors and the Board of Regents of the University of Nebraska for the Period July 1, 1986 through June 30, 1987.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between the board of regents of the University of Nebraska at Omaha (UNO) and the university chapter of the American Association of University Professors (AAUP) for the period July 1, 1986 through June 30, 1987 is presented. The agreement's five articles include the following: (1) definition of terms; (2)…

  11. In the Interests of Innovation: Time for a New Approach to Negotiating Research Agreements between the Commonwealth and Australian Universities

    ERIC Educational Resources Information Center

    Group of Eight (NJ1), 2008

    2008-01-01

    Concerns are held across the Group of Eight (Go8) that the standard terms sought by the Commonwealth when entering into research agreements with universities misunderstand the role and nature of universities; are unnecessarily onerous and impractical; often cause delay and uncertainty due to their complexity; and serve to stifle knowledge transfer…

  12. Collective Bargaining Agreement by and between Hofstra University and the Hofstra Chapter of the American Association of University Professors. September 1, 1988-August 31, 1991.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    This document details the collective bargaining agreement between Hofstra University and the Hofstra Chapter of the American Association of University Professors (AAUP) for the period September 1, 1988 to August 31, 1991. It presents the following 23 articles: list of definitions; recognition of AAUP; faculty statutes and policy series; general…

  13. Agreement between Board of Trustees of Michigan State University and Michigan State University Administrative-Professional Association, October 1, 1985, through September 30, 1988.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between the Michigan State University Board of Trustees and the Michigan State Administrative-Professional Association, an affiliate of the American Association of University Professors (AAUP), is presented covering the period October 1, 1985, through September 30, 1988. The following 46 articles are covered:…

  14. Agreement between Long Island University and the Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University Chapter of the American Association of University Professors, 1981-1986.

    ERIC Educational Resources Information Center

    Long Island Univ., Brooklyn, NY.

    The collective bargaining agreement between Long Island University and the Arnold & Marie Schwartz College of Pharmacy and Health Sciences Chapter (50 members) of the American Association of University Professors (AAUP) covering the period November 1, 1981-November 1, 1986 is presented. Items covered in the agreement include: AAUP recognition,…

  15. Agreement between Long Island University and the Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University Chapter of the American Association of University Professors, October 31, 1986-October 31, 1991.

    ERIC Educational Resources Information Center

    Long Island Univ., Brooklyn, NY.

    The collective bargaining agreement between Long Island University and the Arnold & Marie Schwartz College of Pharmacy and Health Sciences chapter of the American Association of University Professors (AAUP) covering the period October 31, 1986-October 31, 1991 is presented. Items covered in the agreement include: chapter recognition,…

  16. Agreement 1988-1991 between Rider College and the Rider College Chapter of the American Association of University Professors.

    ERIC Educational Resources Information Center

    Rider Coll., Trenton, NJ.

    This document presents the agreement between Rider College (New Jersey) and the Rider College Chapter of the American Association of University Professors for 1988 through 1991. It covers the following 35 articles: recognition of unit; non-discrimination; affirmative action; academic freedom; Association privileges; definition of ranks;…

  17. Measurement of the decay UPSILON(2S). -->. pi. /sup 0/. pi. /sup 0/UPSILON(1S)

    SciTech Connect

    Gelphman, D.M.

    1985-09-01

    The hadronic transitions UPSILON(2S) ..-->.. ..pi../sup 0/..pi..UPSILON(1S) ..-->.. ..gamma gamma gamma gamma..l/sup +/l/sup -/ (l = ..mu.. or e) are investigated using the Crystal Ball detector. The analysis is based on 193,000 UPSILON(2S) events produced at the DORIS II e/sup +/e/sup -/ storage ring from November 1982 to February 1984. We observe 44 events with a muon pair and 46 events with an electron pair in the final state. The signals in both channels are relatively background free. Assuming lepton universality, we average the results for the two channels and obtain the product branching ratio B(UPSILON(2S) ..-->.. ..pi../sup 0/..pi../sup 0/UPSILON(1S)) x B/sub ll/(UPSILON(1S)) = (2.3 +- 0.3 +- 0.3) x 10/sup -3/ where the first error is statistical and the second is systematic. Using the present world average value of B/sub ll/(UPSILON(1S)) = (2.9 +- 0.3)% we derive a branching ratio B(UPSILON(2S) ..-->.. ..pi../sup 0/..pi../sup 0/UPSILON(1S)) = (8.0 +- 1.5)% where the statistical and systematic errors have been added in quadrature. This result is compared with previous results for the charged pion transitions UPSILON(2S) ..-->.. ..pi../sup +/..pi../sup -/UPSILON(1S) and with the expectation from theory. We have also investigated the mass spectrum M/sub ..pi../sup 0/..pi../sup 0// resulting from these decays and find a peaking toward high masses not accounted for the phase space alone. Fits to the ..pi../sup 0/..pi../sup 0/ mass spectrum are in quantitative agreement with previous results for the ..pi../sup +/..pi../sup -/ transitions. Angular distribution for the ..pi../sup 0/..pi../sup 0/ system and its decay products are presented in reference frames appropriate for analyzing the spin of the ..pi../sup 0/..pi../sup 0/ system, even if the initial UPSILON(1S) and the di-pion system are emitted in a relative S-wave. We find the decay distributions to be consistent with those expected for a spin zero di-pion system emitted in a relative S-wave with the

  18. Collective Bargaining Agreement between University of Nebraska at Omaha Chapter American Association of University Professors and the Board of Regents of University of Nebraska for the Period July 1, 1989 through June 30, 1991.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    This is the agreement between the University of Nebraska at Omaha Chapter of the American Association of University Professors (AAUP) and the Board of Regents of the University of Nebraska at Omaha (UNO) for the academic years 1989-1991. Five articles detail the following topics: (1)definition of terms; (2) recognition and description of the…

  19. Finite volume corrections to pi pi scattering

    SciTech Connect

    Sato, Ikuro; Bedaque, Paulo F.; Walker-Loud, Andre

    2006-01-13

    Lattice QCD studies of hadron-hadron interactions are performed by computing the energy levels of the system in a finite box. The shifts in energy levels proportional to inverse powers of the volume are related to scattering parameters in a model independent way. In addition, there are non-universal exponentially suppressed corrections that distort this relation. These terms are proportional to e-m{sub pi} L and become relevant as the chiral limit is approached. In this paper we report on a one-loop chiral perturbation theory calculation of the leading exponential corrections in the case of I=2 pi pi scattering near threshold.

  20. PSCcuny Agreement between the Professional Staff Congress/CUNY and the City University of New York. September 1, 1987-August 31, 1990.

    ERIC Educational Resources Information Center

    Professional Staff Congress of the City Univ. of New York, NY.

    This document presents the agreement between the City University of New York (CUNY) and the Professional Staff Congress of the City University of New York (PSCCUNY) which represents the interests of the CUNY faculty. The agreement, covering the period September 1, 1987 through August 31, 1990, details the following 42 articles: recognition;…

  1. A Master Agreement between the State of Iowa Board of Regents and the Uni-United Faculty of University of Northern Iowa, July 1, 1987-June 30, 1989.

    ERIC Educational Resources Information Center

    Iowa State Board of Regents, Des Moines.

    The collective bargaining agreement between the State of Iowa Board of Regents and the University of Northern Iowa Uni-United Faculty, an affiliate of the National Education Association, for the period July 1, 1987-June 30, 1989 is presented. Items covered in the agreement include: unit recognition; university facilities; faculty evaluation by…

  2. Finding a Way: Library Master Agreements at the University of Tennessee

    ERIC Educational Resources Information Center

    Halaychik, Corey S.

    2015-01-01

    The contract-review and approval process for purchasing and renewing electronic resources at the University of Tennessee had become cumbersome to campus libraries. To streamline existing procedures, the campus libraries, the Office of Contracts Administration, and the Purchasing Department collaborated to find a solution that restored a measure of…

  3. Agreement between the University of Medicine and Dentistry of New Jersey and the Council of Chapters of the American Association of University Professors, July 1, 1983 to June 30, 1986.

    ERIC Educational Resources Information Center

    Rutgers, The State Univ., New Brunswick, NJ. School of Medicine.

    The collective bargaining agreement between the University of Medicine and Dentistry of New Jersey and the Council of Chapters (690 members) of the American Association of University Professors (AAUP) covering the period July 1, 1983-June 30, 1986 is presented. The agreement covers the New Jersey Medical School, New Jersey Dental School, Rutgers…

  4. Observation of pi+pi-pi+pi- photoproduction in ultraperipheral heavy-ion collisions at sqrt sNN = 200 GeV at the STAR detector

    SciTech Connect

    STAR Collaboration; Abelev, Betty

    2010-07-05

    We present a measurement of {pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} photonuclear production in ultra-peripheral Au-Au collisions at {radical}s{sub NN} = 200 GeV from the STAR experiment. The {pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} final states are observed at low transverse momentum and are accompanied by mutual nuclear excitation of the beam particles. The strong enhancement of the production cross section at low transverse momentum is consistent with coherent photoproduction. The {pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} invariant mass spectrum of the coherent events exhibits a broad peak around 1540 {+-} 40 MeV/c{sup 2} with a width of 570 {+-} 60 MeV/c{sup 2}, in agreement with the photoproduction data for the {rho}{sup 0}(1700). We do not observe a corresponding peak in the {pi}{sup +}{pi}{sup -} final state and measure an upper limit for the ratio of the branching fractions of the {rho}{sup 0}(1700) to {pi}{sup +}{pi}{sup -} and {pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} of 2.5% at 90% confidence level. The ratio of {rho}{sup 0}(1700) and {rho}{sup 0}(770) coherent production cross sections is measured to be 13.4 {+-} 0.8{sub stat.} {+-} 4.4{sub syst.}%.

  5. Study of the D0 ---> pi- pi+ pi- pi+ decay

    SciTech Connect

    Link, J.M.; Yager, P.M.; Anjos, J.C.; Bediaga, I.; Castromonte, C.; Machado, A.A.; Magnin, J.; Massafferri, A.; de Miranda, J.M.; Pepe, I.M.; Polycarpo, E.; /Rio de Janeiro, CBPF /CINVESTAV, IPN /Colorado U. /Fermilab /Frascati /Guanajuato U. /Illinois U., Urbana /Indiana U. /Korea U. /Kyungpook Natl. U. /INFN, Milan /Milan U.

    2007-01-01

    Using data from the FOCUS (E831) experiment at Fermilab, they present new measurements for the Cabbibo-suppressed decay mode D{sup 0} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup -}{pi}{sup +}. They measure the branching ratio {Lambda}(D{sup 0} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -})/{Lambda}(D{sup 0} {yields} K{sup -} {pi}{sup +}{pi}{sup -}{pi}{sup +}) = 0.0914 {+-} 0.0018 {+-} 0.0022. An amplitude analysis has been performed, a first for this channel, in order to determine the resonant substructure of this decay mode. The dominant component is the decay D{sup 0} {yields} a{sub 1}(1260){sup +}{pi}{sup -}, accounting for 60% of the decay rate. The second most dominant contribution comes from the decay D{sup 0} {yields} {rho}(770){sup 0}{rho}(770){sup 0}, with a fraction of 25%. They also study the a{sub 1}(1260) line shape and resonant substructure. Using the helicity formalism for the angular distribution of the decay D{sup 0} {yields} {rho}(770){sup 0}{rho}(770){sup 0}, they measure a longitudinal polarization of P{sub L} = (71 {+-} 4 {+-} 2)%.

  6. Collective Bargaining Agreement between the Board of Trustees of Delaware State College and the Delaware State College Chapter of the American Association of University Professors, 1986-1990.

    ERIC Educational Resources Information Center

    Delaware State Coll., Dover.

    The collective bargaining agreement between the board of trustees and the Delaware State College chapter of the American Association of University Professors (AAUP) covering the period 1986 to 1990 is presented. Items covered in the agreement include: definitions; recognition of unit; non-discrimination; rights and privileges (professional dues…

  7. Collective Bargaining Agreement between the University System for New Hampshire Board of Trustees and Keene State College Education Association, July 1, 1985-June 30, 1987.

    ERIC Educational Resources Information Center

    Keene State Coll., NH.

    The collective bargaining agreement between the University System for New Hampshire Board of Trustees and Keene State College Education Association covering the period July 1, 1985-June 30, 1987 is presented. Items covered in the agreement include: unit recognition, definitions, management rights, academic freedom, fair practices, grievance and…

  8. A Cooperative Agreement by and between D'Youville College and D'Youville College Chapter American Association of University Professors, September 1, 1983-August 31, 1985.

    ERIC Educational Resources Information Center

    D'Youville Coll., Buffalo, NY.

    The collective bargaining agreement between D'Youville College and D'Youville College Chapter (70 members) of the American Association of University Professors covering the period September 1, 1983-August 31, 1985, is presented. Items covered in the agreement include: unit recognition; management rights; grievance and arbitration; no…

  9. Collective Bargaining Agreement 1985-1987 between Regis College and the Regis College Chapter of the American Association of University Professors.

    ERIC Educational Resources Information Center

    Regis Coll., Denver, CO.

    The collective bargaining agreement between Regis College and the Regis College Chapter (50 members) of the American Association of University Professors (AAUP) covering the period August 1985-August 1987 is presented. Items covered in the agreement include: definitions and AAUP recognition; faculty-administration relationships; stipends for…

  10. Agreement between Cuyahoga Community College District and the American Association of University Professors Cuyahoga Community College Chapter, September 1, 1983 through September 1, 1986.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Cuyahoga Community College District and the Cuyahoga Community College chapter (310 members) of the American Association of University Professors covering the period September 1, 1983-September 1, 1986 is presented. Items covered in the agreement include: unit recognition, membership obligations, dues…

  11. Agreement between the Administration of Marymount College, Tarrytown, New York and the Marymount College Chapter of the American Association of University Professors, September 1, 1984-August 31, 1986.

    ERIC Educational Resources Information Center

    Marymount Coll., Tarrytown, NY.

    The collective bargaining agreement between the Marymount College Administration and the Marymount College Chapter (55 members) af the American Association of University Professors (AAUP) covering the period September 1, 1984-August 31, 1986 is presented. Items covered in the agreement include: definitions and recognition of AAUP;…

  12. Agreement between Cuyahoga Community College District and the American Association of University Professors Cuyahoga Community College Chapter, September 1, 1986-September 1, 1989.

    ERIC Educational Resources Information Center

    American Association of Univ. Professors, Washington, DC.

    The collective bargaining agreement between Cuyahoga Community College District and the college's chapter of the American Association of University Professors covering the period September 1, 1985-September 1, 1989 is presented. Items covered in the agreement include: unit recognition, membership obligations, dues checkoff, board of trustees'…

  13. Agreement between the City University of New York and the Professional Staff Congress/CUNY, February 1, 1996-July 31, 2000.

    ERIC Educational Resources Information Center

    Professional Staff Congress of the City Univ. of New York, NY.

    This document presents the agreement between the City University of New York (CUNY) and the Professional Staff Congress (PSC) of CUNY, which represents the instructional staff of the institution. The five-year agreement is detailed in 42 articles which address: recognition; CUNY-PSC relationships; unit stability; check-off and agency shop;…

  14. Agreement between Association of Pennsylvania State College and University Faculties (APSCUF) and State System of Higher Education (SSHE), July 1, 1985-June 30, 1987.

    ERIC Educational Resources Information Center

    Pennsylvania State System of Higher Education.

    The collective bargaining agreement between the Pennsylvania State System of Higher Education and the Association of Pennsylvania and University Faculties, an affiliate of the National Education Association, covering the period July 1, 1985-June 30, 1987 is presented. Items covered in the agreement include: unit recognition, academic freedom,…

  15. Targeting the cell cycle and the PI3K pathway: a possible universal strategy to reactivate innate tumor suppressor programmes in cancer cells.

    PubMed

    David-Pfeuty, Thérèse; Legraverend, Michel; Ludwig, Odile; Grierson, David S

    2010-04-01

    Corruption of the Rb and p53 pathways occurs in virtually all human cancers. This could be because it lends oncogene-bearing cells a surfeit of Cdk activity and growth, enabling them to elaborate strategies to evade tumor-suppressive mechanisms and divide inappropriately. Targeting both Cdk activities and the PI3K pathway might be therefore a potentially universal means to palliate their deficiency in cancer cells. We showed that the killing efficacy of roscovitine and 16 other purines and potentiation of roscovitine-induced apoptosis by the PI3K inhibitor, LY294002, decreased with increasing corruption of the Rb and p53 pathways. Further, we showed that purines differing by a single substitution, which exerted little lethal effect on distant cell types in rich medium, could display widely-differing cytotoxicity profiles toward the same cell types in poor medium. Thus, closely-related compounds targeting similar Cdks may interact with different targets that could compete for their interaction with therapeutically-relevant Cdk targets. In the perspective of clinical development in association with the PI3K pathway inhibitors, it might thus be advisable to select tumor cell type-specific Cdk inhibitors on the basis of their toxicity in cell-culture-based assays performed at a limiting serum concentration sufficient to suppress their interaction with undesirable crossreacting targets whose range and concentration would depend on the cell genotype.

  16. Agreement between the University of Medicine and Dentistry of New Jersey and the School of Health Related Professions Faculty, July 1, 1986-June 30, 1989.

    ERIC Educational Resources Information Center

    University of Medicine and Dentistry of New Jersey, Newark.

    The collective bargaining agreement between the University of Medicine and Dentistry of New Jersey and the School of Health Related Professions Faculty, an affiliate of the American Association of University Professors (AAUP), covering the period July 1, 1986 through June 30, 1989, is presented. Topics covered include the following: preamble;…

  17. Dalitz Plot Analyses of B- to D+ Pi- Pi-, B+ to Pi+ Pi- Pi+ and D(S)+ to Pi+ Pi- Pi+ at BaBar

    SciTech Connect

    Dong, Liaoyuan; /Iowa State U.

    2012-04-10

    We report on the Dalitz plot analyses of B{sup -} {yields} D{sup +}{pi}{sup -}{pi}{sup -}, B{sup +} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup +} and D{sub s}{sup +} {yields} {pi}{sup +}{pi}{sup -}{sup +}. The Dalitz plot method and the most recent BABAR results are discussed.

  18. Experimental Pi.

    ERIC Educational Resources Information Center

    Corris, G.

    1990-01-01

    Discusses the calculation of pi by means of experimental methods. Polygon circle ratios, Archimedes' method, Buffon's needles, a Monte Carlo method, and prime number approaches are used. Presents three BASIC programs for the calculations. (YP)

  19. Community College Agreement between the Alaska Community Colleges' Federation of Teachers Local 2404, AFT, and the University of Alaska, April 1, 1984-March 31, 1987.

    ERIC Educational Resources Information Center

    Alaska Univ., Fairbanks.

    The collective bargaining agreement between the University of Alaska and the Alaska Community Colleges' Federation of Teachers, the exclusive bargaining agent for all statewide rural education learning center and community college faculty, is presented, covering the period between April 1, 1984 and March 31, 1987. The 13 articles in the agreement…

  20. Agreement between the Board of Regents of Higher Education and the Massachusetts Society of Professors at the University of Lowell, July 1, 1983-June 30, 1986.

    ERIC Educational Resources Information Center

    Lowell Univ., MA.

    The collective bargaining agreement between the Massachusetts Board of Regents of Higher Education and the Massachusetts Society of Professors at the University of Lowell covering the period July 1, 1983-June 30, 1986 is presented. An affiliate of the National Education Association and the Massachusetts Teachers Association, the unit has 423…

  1. Agreement between Commonwealth of Pennsylvania and Association of Pennsylvania State College and University Faculties (APSCUF), July 1, 1981 to June 30, 1984 and Reopener and Contract Extension Agreement between Association of Pennsylvania State College and University Faculties and State System of Higher Education, July 1, 1983 to June 30, 1985.

    ERIC Educational Resources Information Center

    Association of Pennsylvania State Coll. and Univ. Faculties, Harrisburg.

    The collective bargaining agreement between the Commonwealth of Pennsylvania and the Association of Pennsylvania State College and University Faculties (APSCUF; 4,200 members) covering the period July 1, 1981 to June 30, 1984 is presented. Also included for this American Association of University Professors affiliated union is the reopener and…

  2. Diffractive Pion Dissociation into {pi}{sup -{pi}+{pi}-{pi}+{pi}-} at COMPASS

    SciTech Connect

    Neubert, S.

    2010-08-05

    At the COMPASS experiment a sample of {approx}380000 exclusive events of diffractive pion dissociation on a lead target into a {pi}{sup -{pi}+{pi}-{pi}+{pi}-} final state has been recorded in 2004. The 5{pi} invariant mass spectrum shows a momentum transfer dependent structure peaking around 1.8 GeV/c{sup 2}. In the (4{pi}){sup 0} subsystem there is a clear signal for the f{sub 1}(1285) resonance decaying into 4 pions. In this note we describe the data sample and explore the physics potential of this final state.

  3. Analysis of patients with atypical hemolytic uremic syndrome treated at the Mie University Hospital: concentration of C3 p.I1157T mutation.

    PubMed

    Matsumoto, Takeshi; Fan, Xinping; Ishikawa, Eiji; Ito, Masaaki; Amano, Keishirou; Toyoda, Hidemi; Komada, Yoshihiro; Ohishi, Kohshi; Katayama, Naoyuki; Yoshida, Yoko; Matsumoto, Masanori; Fujimura, Yoshihiro; Ikejiri, Makoto; Wada, Hideo; Miyata, Toshiyuki

    2014-11-01

    Atypical hemolytic uremic syndrome (aHUS) is caused by abnormalities of the complement system and has a significantly poor prognosis. The clinical phenotypes of 12 patients in nine families with aHUS with familial or recurrent onset and ADAMTS13 activity of ≥20 % treated at the Mie University Hospital were examined. In seven of the patients, the first episode of aHUS occurred during childhood and ten patients experienced a relapse. All patients had renal dysfunction and three had been treated with hemodialysis. Seven patients experienced probable triggering events including common cold, influenza, bacterial infection and/or vaccination for influenza. All patients had entered remission, and renal function was improved in 11 patients. DNA sequencing of six candidate genes, identified a C3 p.I1157T missense mutation in all eight patients in six families examined and this mutation was causative for aHUS. A causative mutation THBD p.D486Y was also identified in an aHUS patient. Four missense mutations, CFH p.V837I, p.Y1058H, p.V1060L and THBD p.R403K may predispose to aHUS manifestation; the remaining seven missense mutations were likely neutral. In conclusion, the clinical phenotypes of aHUS are various, and there are often trigger factors. The C3 p.I1157T mutation was identified as the causative mutation for aHUS in all patients examined, and may be geographically concentrated in or around the Mie prefecture in central Japan.

  4. Charmless decays B{yields}{pi}{pi},{pi}K and KK in broken SU(3) symmetry

    SciTech Connect

    Wu Yueliang; Zhou Yufeng

    2005-08-01

    Charmless B decay modes B{yields}{pi}{pi},{pi}K and KK are systematically investigated with and without flavor SU(3) symmetry. Independent analyses on {pi}{pi} and {pi}K modes both favor a large ratio between color-suppressed tree (C) and tree (T) diagram, which suggests that they are more likely to originate from long distance effects. The sizes of QCD penguin diagrams extracted individually from {pi}{pi}, {pi}K and KK modes are found to follow a pattern of SU(3) breaking in agreement with the naive factorization estimates. Global fits to these modes are done under various scenarios of SU(3) relations. The results show good determinations of weak phase {gamma} in consistency with the standard model (SM), but a large electroweak penguin (P{sub EW}) relative to T+C with a large relative strong phase is favored, which requires a big enhancement of color-suppressed electroweak penguin (P{sub EW}{sup C}) compatible in size but destructively interfering with P{sub EW} within the SM, or implies new physics. The possibilities of sizable contributions from nonfactorizable diagrams such as W exchange (E), annihilation (A), and penguin-annihilation diagrams (P{sub A}) are investigated. The implications to the branching ratios and CP violations in KK modes are discussed.

  5. Measurement of ratio R = (BR(D{sup 0}{yields}K{pi}{pi}{pi})/BR(D{sup 0}{yields}K{pi})) in {pi}{sup -}-Nucleus interactions at 500 GeV/c

    SciTech Connect

    Solano Salinas, C. J.; Paucarchuco, C.; Fernandez, A.; Sheaff, M.

    2007-10-26

    We report a very preliminary result on the measurement of the ratio of branching ratios, for two decays D{sup 0} meson, R = (BR(D{sup 0}{yields}K{pi}{pi}{pi})/BR(D{sup 0}{yields}K{pi})), using data from the E791 experiment. We find R = 1.96{+-}0.0286 (stat){+-}0.06 (sys). This is in agreement with and of similar precision to the current PDG average value 1.97{+-}0.09.

  6. Measurements of Charged Current Lepton Universality and |Vus| using Tau Lepton Decays to e- v v, __- v v, pi- v and K- v

    SciTech Connect

    Aubert, Bernard; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Battaglia, M.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /Frascati /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /INFN, Milan /Milan U. /INFN, Milan /INFN, Milan /Milan U. /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /INFN, Naples /Naples U. /INFN, Naples /INFN, Naples /Naples U. /NIKHEF, Amsterdam /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /INFN, Padua /INFN, Padua /Padua U. /Paris U., VI-VII /Pennsylvania U. /INFN, Perugia /Perugia U. /INFN, Pisa /Pisa U. /INFN, Pisa /Pisa, Scuola Normale Superiore /INFN, Pisa /Pisa U. /INFN, Pisa /Princeton U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas U. /Texas U., Dallas /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /Valencia U. /Victoria U. /Warwick U. /Wisconsin U., Madison

    2011-06-30

    Using 467 fb{sup -1} of e{sup +}e{sup -} annihilation data collected with the BABAR detector, they measure {Beta}({tau}{sup -} {yields} {mu}{sup -}{bar {nu}}{sub {mu}}{nu}{sub {tau}})/{Beta}({tau}{sup -} {yields} e{sup -} {bar {nu}}{sub e}{nu}{sub {tau}}) = (0.9796 {+-} 0.0016 {+-} 0.0036), {Beta}({tau}{sup -} {yields} {pi}{sup -} {nu}{sub {tau}})/{Beta}({tau}{sup -} {yields} e{sup -}{bar {nu}}{sub e}{nu}{sub {tau}}) = (0.5945 {+-} 0.0014 {+-} 0.0061), and {Beta}({tau}{sup -} {yields} K{sup -}{nu}{sub {tau}})/{Beta}({tau}{sup -} {yields} e{sup -}{bar {nu}}{sub e}{nu}{sub {tau}}) = (0.03882 {+-} 0.00032 {+-} 0.00057), where the uncertainties are statistical and systematic, respectively. From these precision {tau} measurements, they test the Standard Model assumption of {mu}-e and {tau}-{mu} charge current lepton universality and provide determinations of |V{sub us}| experimentally independent of the decay of a kaon.

  7. Dalitz Plot Analysis of B+- --> pi+-pi+-pi-+ Decays

    SciTech Connect

    Collaboration, The BABAR; Aubert, B.

    2009-02-23

    The authors present a Dalitz-plot analysis of charmless B{sup {+-}} decays to the final state {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}} using a sample of (465 {+-} 5) x 10{sup 6} B{bar B} pairs collected by the BABAR experiment at {radical}s = 10.58 GeV. They measure the branching fractions {Beta}(B{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}}) = (15.2 {+-} 0.6 {+-} 1.2 {+-} 0.4) x 10{sup -6}, {Beta}(B{sup {+-}} {yields} {rho}{sup 0}(770){pi}{sup {+-}}) = (8.1 {+-} 0.7 {+-} 1.2{sub -1.1}{sup +0.4}) x 10{sup -6}, {Beta}(B{sup {+-}} {yields} f{sub 2}(1270){pi}{sup {+-}}) = (1.57 {+-} 0.42 {+-} 0.16{sub -0.19}{sup +0.53}) x 10{sup -6}, and {Beta}(B{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}} nonresonant) = (5.3 {+-} 0.7 {+-} 0.6{sub -0.5}{sup +1.1}) x 10{sup -6}, where the uncertainties are statistical, systematic, and model-dependent, respectively. Measurements of branching fractions for the modes B{sup {+-}} {yields} {rho}{sup 0}(1450){pi}{sup {+-}} and B{sup {+-}} {yields} f{sub 0}(1370){pi}{sup {+-}} are also presented. They observe no significant direct CP asymmetries for the above modes, and there is no evidence for the decays B{sup {+-}} {yields} f{sub 0}(980){pi}{sup {+-}}, B{sup {+-}} {yields} {chi}{sub c0}{pi}{sup {+-}}, or B{sup {+-}} {yields} {chi}{sub c2}{pi}{sup {+-}}.

  8. {pi} p and {pi}{pi} scattering at LHC

    SciTech Connect

    Ryutin, R.; Petrov, V.; Sobol, A.

    2011-07-15

    Can we get the information on {pi} p and {pi}{pi} scattering from the LHC data? We present briefly recent results of the IHEP Diffractive Group, which include all the steps: formulation of the problem, an idea how to solve it, experimental tools, Monte-Carlo simulation and preliminary expectations concerning the first data from the LHC.

  9. The Perspectives of University Administrators towards International Leadership, Study Abroad Programs, and Cooperative Agreements in Central American Public and Private Universities

    ERIC Educational Resources Information Center

    Curbelo Ruiz, Aurelio

    2013-01-01

    As the world becomes globalized by the influence of science and technology, academic institutions in Central America must provide international academic and research opportunities that are conductive to multicultural learning for students, faculty, and staff. Public and private universities in Central America are attempting to increase awareness…

  10. Final report for the Department of Energy funded cooperative agreement ''Electronic Research Demonstration Project'' [University electronic research administration demonstration project

    SciTech Connect

    Rodman, John

    1998-07-31

    This is the final report for the Department of Energy (DOE) funded cooperative agreement ''Electronic Research Demonstration Project (DE-FC02-92ER35180)'' for the period August 1994-July 1998. The goal of the project, referred to as NewERA, was to demonstrate the use of open standards for electronic commerce to support research administration, otherwise referred to as Electronic Research Administration (ERA). The NewERA demonstration project provided a means to test interagency standards developed within the Federal Grant Electronic Commerce Committee, a group comprised of federal granting agencies. The NewERA program was initiated by DOE. NewERA was comprised of three separate, but related, ERA activities in preaward administration, postaward administration, and secure Internet commerce. The goal of New ERA was to demonstrate an open standard implementation of ERA using electronic data interchange, e-mail and Internet transaction security between grant applicants and DOE, along with t h e other participating agencies.

  11. The Ubiquitous Pi.

    ERIC Educational Resources Information Center

    Castellanos, Dario

    1988-01-01

    Some appearances of pi in a wide variety of problems are presented. Sections focus on some history, the first analytical expressions for pi, Euler's summation formula, Euler and Bernoulli, approximations to pi, two and three series for the arctangent, more analytical expressions for pi, and arctangent formulas for calculating pi. (MNS)

  12. Collective Bargaining Agreement between Western Montana College Faculty Association (Local 4323, MFT, AFT, AFL-CIO) and the Board of Regents of Higher Education, Montana University System, July 1, 1985-June 30, 1987.

    ERIC Educational Resources Information Center

    Montana Univ. System, Helena.

    The collective bargaining agreement between the Board of Regents of Montana University System and Western Montana College Faculty Association, an American Federation of Teachers affiliate, covering the period July 1, 1985-June 30, 1987, is presented. Items covered in the agreement include: unit recognition; dues deduction; dues checkoff;…

  13. Agreement entered into between New York Institute of Technology and the Council of Metropolitan and Old Westbury Chapters of the American Association of University Professors at the New York Institute of Technology, September 1, 1983 until August 31, 1986.

    ERIC Educational Resources Information Center

    New York Inst. of Tech., Old Westbury.

    The collective bargaining agreement between New York Institute of Technology and the Council of Metropolitan and Old Westbury chapters (220 members) of the American Association of University Professors (AAUP) covering the period September 1, 1983-August 31, 1986 is presented. Items covered in the agreement include: definitions and recognition of…

  14. Precision Measurement of {pi}{pi} Scattering Lengths in K{sub e4} Decays

    SciTech Connect

    Madigozhin, D. T.

    2011-05-23

    The measurement of the S-wave {pi}{pi} scattering lengths is a fundamental test of the validity of Chiral Perturbation Theory. We report on the final NA48/2 result, based on the full statistics data set of more than one million reconstructed K{sub e4}{sup {+-}} decays. From these events we have determined the decay form factors and {pi}{pi} scattering lengths a{sub 0}{sup 0} and a{sub 0}{sup 2}. The result is the currently most precise measurement of the scattering lengths and is in excellent agreement with the predictions of Chiral Perturbation Theory.

  15. The Quest for Pi

    NASA Technical Reports Server (NTRS)

    Bailey, David H.; Borwein, Jonathan M.; Borwein, Peter B.; Plouffe, Simon

    1996-01-01

    This article gives a brief history of the analysis and computation of the mathematical constant Pi=3.14159 ..., including a number of the formulas that have been used to compute Pi through the ages. Recent developments in this area are then discussed in some detail, including the recent computation of Pi to over six billion decimal digits using high-order convergent algorithms, and a newly discovered scheme that permits arbitrary individual hexadecimal digits of Pi to be computed.

  16. Measurement of Activated Au foils by 2{pi}{beta}+2{pi}{beta}-{gamma} Coincidence Counting and EGS5 Monte Carlo Calculation

    SciTech Connect

    Sato, Yasushi; Harano, Hideki; Matsumoto, Tetsuro; Nishiyama, Jun; Moriyama, Kentaro; Unno, Yasuhiro; Yamada, Takahiro; Yunoki, Akira; Hino, Yoshio; Kudo, Katsuhisa

    2009-03-10

    Neutron activation analysis using Au foil is a common and important method for measurement of thermal neutron fluence. To determine the activity of Au foil experimentally, Kawada et al. proposed 2{pi}{beta}+2{pi}{beta}-{gamma} coincidence counting. This method is based on 4{pi}{beta}-{gamma} coincidence counting but a 4{pi}{beta} detector is divided into two 2{pi}{beta} detectors those are independently operated in the method. In this research the correction factors in 2{pi}{beta}+2{pi}{beta}-{gamma} coincidence counting were obtained by measurement and simulation. The activities obtained by these correction factors were in good agreement.

  17. Pi: The Digit Hunt.

    ERIC Educational Resources Information Center

    NCTM Student Math Notes, 1983

    1983-01-01

    Mathematics activities and facts related to pi are presented in this issue of "Student Math Notes." Included are: (1) an exercise based on Buffon's needle problem in which pieces of toothpicks are dropped onto a ruled surface; (2) a calculation of pi to 200 decimal places; (3) exercises related to Biblical and ancient Chinese approximations of pi;…

  18. Pi Division and Addition

    ERIC Educational Resources Information Center

    Scott, Paul

    2008-01-01

    The number Pi (approximately 3.14159) is defined to be the ratio C/d of the circumference (C) to the diameter (d) of any given circle. In particular, Pi measures the circumference of a circle of diameter d = 1. Historically, the Greek mathematician Archimedes found good approximations for Pi by inscribing and circumscribing many-sided polygons…

  19. Can Exceptional, Visually Impaired Graduate Students, Educationally Funded by their use of Initially Profit-free Franchised Naturoptics, be Recruited to Proposed Native American Universities, and their Mentor Partners with Joint-degree Agreements?

    NASA Astrophysics Data System (ADS)

    Ferreira, Nadja; McLeod, David; McLeod, Roger

    2006-10-01

    Naturoptic Vision Improvement Methods developed and first propagated in the Americas can be transferred to other locales, particularly to Germany, Austria, and German-speaking areas of Switzerland, and to British (or former) Commonwealth areas, France, Greece, Russia, and diverse areas of Africa and Asia, particularly Japan. The method will attempt to mimic any successful transplants already in progress, or in the planning stages. It will consist primarily in recruiting visually impaired students who have finished their undergraduate work, and who are outstanding enough to be admitted into an appropriate university of their choice. Joint-degree linkages with universities in mentoring agreements with any potential universities, naturopathic or otherwise, are among our favorites. Potential faculty for proposed universities will have longer term use of an appropriate franchise in some profit- free franchisor agreements.

  20. Status of 0{sup -+} in {omega}{pi}{sup -}{pi}{sup 0} and {pi}{sup +}{pi}{sup -}{pi}{sup -} channels

    SciTech Connect

    Amelin, Dmitry

    1998-05-29

    Resonance-like behavior of phase of the 0{sup -+}{rho}{pi}{sup -} wave is found at M{approx_equal}1.6 MeV at VES spectrometer in {pi}{sup +}{pi}{sup -}{pi}{sup -} system. The results of the combined fit of 0{sup -+} waves obtained from PWA of the {omega}{pi}{sup 0}{pi}{sup -} and {pi}{sup +}{pi}{sup -}{pi}{sup -} systems are presented.

  1. Agreement between Bloomfield College and the Bloomfield College Chapter of the American Association of University Professors and Bloomfield College Faculty Personnel Procedures, July 1, 1985-June 30, 1987.

    ERIC Educational Resources Information Center

    Bloomfield Coll., NJ.

    The collective bargaining agreement between Bloomfield College and the Bloomfield College Chapter of AAUP covering the period July 1, 1985-June 30, 1987 is presented. Items covered in the agreement include: contract management, no strike/lockout, nondiscrimination, chapter rights, dues checkoff, academic freedom, faculty status and criteria for…

  2. Reaction {pi}N {yields} {pi}{pi}N near threshold

    SciTech Connect

    Frlez, E.

    1993-11-01

    The LAMPF E1179 experiment used the {pi}{sup 0} spectrometer and an array of charged particle range counters to detect and record {pi}{sup +}{pi}{sup 0}, {pi}{sup 0}p, and {pi}{sup +}{pi}{sup 0}p coincidences following the reaction {pi}{sup +}p {yields} {pi}{sup 0}{pi}{sup +}p near threshold. The total cross sections for single pion production were measured at the incident pion kinetic energies 190, 200, 220, 240, and 260 MeV. Absolute normalizations were fixed by measuring {pi}{sup +}p elastic scattering at 260 MeV. A detailed analysis of the {pi}{sup 0} detection efficiency was performed using cosmic ray calibrations and pion single charge exchange measurements with a 30 MeV {pi}{sup {minus}} beam. All published data on {pi}N {yields} {pi}{pi}N, including our results, are simultaneously fitted to yield a common chiral symmetry breaking parameter {xi} ={minus}0.25{plus_minus}0.10. The threshold matrix element {vert_bar}{alpha}{sub 0}({pi}{sup 0}{pi}{sup +}p){vert_bar} determined by linear extrapolation yields the value of the s-wave isospin-2 {pi}{pi} scattering length {alpha}{sub 0}{sup 2}({pi}{pi}) = {minus}0.041{plus_minus}0.003 m{sub {pi}}{sup {minus}1}, within the framework of soft-pion theory.

  3. Using Pi in Cryptology

    ERIC Educational Resources Information Center

    Dence, Thomas P.; Heath, Steven

    2005-01-01

    The number Pi has a rich and colorful history. The origin of Pi dates back to when Greek mathematicians realized that the ratio of the circumference to the diameter is the same for all circles. One is most familiar with many of its applications to geometry, analysis, probability, and number theory. This paper demonstrates several examples of how…

  4. [Pi] Round and Round

    ERIC Educational Resources Information Center

    Scott, Paul

    2008-01-01

    One of the best known numbers in mathematics is the number denoted by the symbol [pi]. This column describes activities that teachers can utilize to encourage students to explore the use of [pi] in one of the simplest of geometric figures: the circle.

  5. PiVoT GPS Receiver

    NASA Technical Reports Server (NTRS)

    Wennersten, Miriam Dvorak; Banes, Anthony Vince; Boegner, Gregory J.; Dougherty, Lamar; Edwards, Bernard L.; Roman, Joseph; Bauer, Frank H. (Technical Monitor)

    2001-01-01

    NASA Goddard Space Flight Center has built an open architecture, 24 channel space flight GPS receiver. The CompactPCI PiVoT GPS receiver card is based on the Mitel/GEC Plessey Builder-2 board. PiVoT uses two Plessey 2021 correlators to allow tracking of up to 24 separate GPS SV's on unique channels. Its four front ends can support four independent antennas, making it a useful card for hosting GPS attitude determination algorithms. It has been built using space quality, radiation tolerant parts. The PiVoT card will track a weaker signal than the original Builder 2 board. It also hosts an improved clock oscillator. The PiVoT software is based on the original Plessey Builder 2 software ported to the Linux operating system. The software is POSIX complaint and can easily be converted to other POSIX operating systems. The software is open source to anyone with a licensing agreement with Plessey. Additional tasks can be added to the software to support GPS science experiments or attitude determination algorithms. The next generation PiVoT receiver will be a single radiation hardened CompactPCI card containing the microprocessor and the GPS receiver optimized for use above the GPS constellation. PiVoT was flown successfully on a balloon in July, 2001, for its first non-simulated flight.

  6. Dynamical coupled-channels study of {pi}N{yields}{pi}{pi}N reactions

    SciTech Connect

    Kamano, H.; Julia-Diaz, B.; Lee, T.-S. H.; Matsuyama, A.; Sato, T.

    2009-02-15

    As a step toward performing a complete coupled-channels analysis of the world data of {pi}N,{gamma}*N{yields}{pi}N,{eta}N,{pi}{pi}N reactions, the {pi}N{yields}{pi}{pi}N reactions are investigated starting with the dynamical coupled-channels model developed in Phys. Rev. C 76, 065201 (2007). The channels included are {pi}N,{eta}N, and {pi}{pi}N which has {pi}{delta},{rho}N, and {sigma}N resonant components. The nonresonant amplitudes are generated from solving a set of coupled-channels equations with the meson-baryon potentials defined by effective Lagrangians. The resonant amplitudes are generated from 16 bare excited nucleon (N*) states that are dressed by the nonresonant interactions as constrained by the unitarity condition. The data of total cross sections and {pi}N and {pi}{pi} invariant mass distributions of {pi}{sup +}p{yields}{pi}{sup +}{pi}{sup +}n,{pi}{sup +}{pi}{sup 0}p and {pi}{sup -}p{yields}{pi}{sup +}{pi}{sup -}n,{pi}{sup -}{pi}{sup 0}p,{pi}{sup 0}{pi}{sup 0}n reactions from threshold to the invariant mass W=2 GeV can be described to a very large extent. We show the importance of the coupled-channels effects and the strong interference among the contributions from the {pi}{delta},{sigma}N, and {rho}N channels. The large interference between the resonant and nonresonant amplitudes is also demonstrated. Possible future developments are discussed.

  7. Agreement Between Bloomfield College and the Bloomfield College Chapter of the American Association of University Professors, July 1, 1977 through June 30, 1978.

    ERIC Educational Resources Information Center

    Bloomfield Coll., NJ.

    The agreement covers contract management, chapter rights, college governance, academic freedom, faculty status, terms of appointment, reappointment and tenure, dismissal for cause, grievance procedure, arbitration, leaves of absence, salaries, fringe benefits, working conditions, workload, retrenchment, part-time faculty, faculty in the veterans'…

  8. Archimedes and Pi.

    ERIC Educational Resources Information Center

    Shilgalis, Thomas W.

    1989-01-01

    Discusses a calculation method to approximate pi. Describes how to get an approximation to the circumscribed and inscribed perimeters of regular polygons of n sides. Presents the computer program and result of the approximation. (YP)

  9. A Matter of Diversity, Equity, and Necessity: The Tension between Maryland's Higher Education System and Its Historically Black Colleges and Universities over the Office of Civil Rights Agreement

    ERIC Educational Resources Information Center

    Palmer, Robert T.; Davis, Ryan J.; Gasman, Marybeth

    2011-01-01

    Eighteen years after the Supreme Court rendered its decision in Fordice, many states have complied somewhat or not at all to its mandates. This has been particularly evident in Maryland, where the presidents of historically Black colleges and universities (HBCUs) are pressuring the state to fulfill its commitment with the Office of Civil Rights…

  10. Combining information from B{yields}{pi}{pi} and B{yields}{pi}{rho},{pi}{omega} decays

    SciTech Connect

    Sowa, M.; Zenczykowski, P.

    2005-06-01

    We consider the B{yields}{pi}{pi} and B{yields}{pi}{rho},{pi}{omega} decays alongside each other, taking into account the contributions from all individual penguin amplitudes generated by the internal t, c, and u quarks. We argue that three ratios of penguin amplitudes, each for a different internal quark, formed by dividing the individual penguin amplitude in B{yields}{pi}{pi} by the corresponding amplitude in B{yields}{pi}{rho},{pi}{omega}, should be equal. We study the implications of the assumed existence of this connection between B{yields}{pi}{pi} and B{yields}{pi}{rho},{pi}{omega}. First, accepting that in the B{yields}{pi}{pi} decays the ratio C/T of the color-suppressed factorization amplitude C to the tree factorization amplitude T is negligible, we determine the ratio of individual penguin amplitudes. Then, from the B{yields}{pi}{rho},{pi}{omega} data, we extract the effective (i.e. possibly containing some penguin terms) tree and the effective color-suppressed amplitudes relevant for these processes, and the corresponding solutions for the factorization amplitudes. Finally, we argue that the C/T ratio in B{yields}{pi}{pi} should be identical to its counterpart in B{yields}{pi}{rho},{pi}{omega} (relevant for pion emission from the decaying b quark). This constraint permits the determination of C/T and of other amplitude ratios directly from the data. Although the |C/T| ratio extracted from the available data still carries a substantial error, it is consistent with the expected value of 0.25-0.5.

  11. Analytical {pi}{pi} scattering amplitude and the light scalars

    SciTech Connect

    Achasov, N. N.; Kiselev, A. V.

    2011-03-01

    In this work we construct the {pi}{pi} scattering amplitude T{sub 0}{sup 0} with regular analytical properties in the s complex plane, which describes simultaneously the data on the {pi}{pi} scattering, {phi}{yields}{pi}{sup 0}{pi}0{gamma} decay, and {pi}{pi}{yields}KK reaction. The chiral shielding of the {sigma}(600) meson and its mixing with the f{sub 0}(980) meson are also taken into account. The data agrees with the four-quark nature of the {sigma}(600) and f{sub 0}(980) mesons. The amplitude in the range -5m{sub {pi}}{sup 2}

  12. Why Pi And Mrad

    SciTech Connect

    Becker, R.; Herrmannsfeldt, W.B.; /SLAC

    2006-07-07

    Today it is generally accepted in the ion source and accelerator communities to communicate emittance data with units of {pi} mm mrad or {pi} cm mrad. The emittance of a beam with 2 cm diameter or width and an opening angle of 200 mrad then is written as E=100 {pi} cm mrad. This example shows that {pi} has not been involved when calculating the half-axis product which is the numerical definition for the emittance. Why should we add {pi} to the dimensions? We will explain that this convention is not at all a logical one and is confusing to all those who are entering the field as freshmen or just do not want to become experts by adjusting to strange rules. We therefore propose to skip the ''{pi}'' in the dimension and to add characters as sub- or superscripts to the variable E, which describe the specific kind of emittance formulation used, e.g., E{sub r,r'}, E{sub x,x'}, E{sub rms}, E{sub 4*rms}, E{sub norm}, E{sub area}, and E{sub ellipse}. In a real case, such an emittance naming could appear as E{sub x,x',4rms}{sup norm}. Additionally--to be consistent with cleaning up--the dimension of emittances should be given in centimeters or meters, because rad are ratios and free of dimension. Therefore, instead of using cm mrad it is much more logical to communicate emittance data by writing {var_epsilon} m, where {var_epsilon} is the product of the maximum value for half of the beam thickness in meters and its opening angle in rad.

  13. Calculating phases between B{yields}K*{pi} amplitudes

    SciTech Connect

    Gronau, Michael; Pirjol, Dan; Rosner, Jonathan L.

    2010-05-01

    A phase {Delta}{Phi} between amplitudes for B{sup 0{yields}}K*{sup 0{pi}0} and B{sup 0{yields}}K*{sup +{pi}-} plays a crucial role in a method for constraining Cabibbo-Kobayashi-Maskawa parameters. We present a general argument for destructive interference between amplitudes for B{sup 0{yields}}K*{sup +{pi}-} and B{sup 0{yields}}K*{sup 0{pi}0} forming together a smaller I(K*{pi})=3/2 amplitude. Applying flavor SU(3) and allowing for conservative theoretical uncertainties, we obtain lower limits on |{Delta}{Phi}| and its charge conjugate. Values of these two phases favored by the BABAR collaboration are in good agreement with our bounds.

  14. Charming penguin contributions to B{r_arrow}K{pi}

    SciTech Connect

    Isola, C.; Ladisa, M.; Nardulli, G.; Pham, T. N.; Santorelli, P.

    2001-07-01

    We present calculations of the charming-penguin long-distance contributions to B{r_arrow}K{pi} decays due to intermediate charmed meson states. Our calculation is based on the chiral effective Lagrangian for light and heavy mesons, corrected for the hard pion and kaon momenta. We find that the charming-penguin contributions increase significantly the B{r_arrow}K{pi} decay rates in comparison with the short-distance contributions, giving results in better agreement with experimental data.

  15. Solomon's Sea and [Pi

    ERIC Educational Resources Information Center

    Simoson, Andrew J.

    2009-01-01

    This paper is a whimsical survey of the various explanations which might account for the biblical passage in I Kings 7:23 that describes a round object--a bronze basin called Solomon's Sea--as having diameter ten cubits and circumference thirty cubits. Can the biblical pi be any number other than 3? We offer seven different perspectives on this…

  16. Measurement of the Ratios of Branching Fractions B(Bs -> Ds pi pi pi) / B(Bd -> Dd pi pi pi) and B(Bs -> Ds pi) / B(Bd -> Dd pi)

    SciTech Connect

    Abulencia, A.; Adelman, J.; Affolder, T.; Akimoto, T.; Albrow, M.G.; Ambrose, D.; Amerio, S.; Amidei, D.; Anastassov, A.; Anikeev, K.; Annovi, A.; /Frascati /Taiwan, Inst. Phys.

    2006-10-01

    Using 355 pb{sup -1} of data collected by the CDF II detector in p{bar p} collisions at {radical}s = 1.96 TeV at the Fermilab Tevatron, they study the fully reconstructed hadronic decays B{sub (s)}{sup 0} {yields} D{sub (s)}{sup -}{pi}{sup +} and B{sub (s)}{sup 0} {yields} D{sub (s)}{sup -} {pi}{sup +}{pi}{sup +}{pi}{sup -}. They present the first measurement of the ratio of branching fractions {Beta}(B{sub s}{sup 0} {yields} D{sub s}{sup -}{pi}{sup +}{pi}{sup +}{pi}{sup -})/{Beta}(B{sup 0} {yields} D{sup -} {pi}{sup +}{pi}{sup +}{pi}{sup -}) = 1.05 {+-} 0.10(stat.) {+-} 0.22(syst.). They also update their measurement of {Beta}(B{sub s}{sup 0} {yields} D{sub s}{sup -} {pi}{sup +})/{Beta}(B{sup 0} {yields} D{sup -} {pi}{sup +}) to 1.13 {+-} 0.08(stat.) {+-} 0.23(syst.) improving the statistical uncertainty by more than a factor of two. They find {Beta}(B{sub s}{sup 0} {yields} D{sub s}{sup -} {pi}{sup +}) = [3.8 {+-} 0.3(stat.) {+-} 1.3(syst.)] x 10{sup -3} and {Beta}(B{sub s}{sup 0} {yields} D{sub s}{sup -} {pi}{sup +}{pi}{sup +}{pi}{sup -}) = [8.4 {+-} 0.8(stat.) {+-} 3.2(syst.)] x 10{sup -3}.

  17. Exclusive Central pi+pi- production in CDF

    SciTech Connect

    Albrow, Michael; Swiech, Artur; Zurek, Maria

    2013-10-14

    Using the Collider Detector at Fermilab, CDF, we have measured exclusive pi+pi- production at sqrt(s) = 900 GeV and 1960 GeV. The pi+pi- pair is central, |y| < 1.0, and there are no other particles detected in |eta| < 5.9. We discuss the mass spectrum, showing f0(980) and f2(1270) resonances, s-dependence, pT-dependence, and angular distributions.

  18. Determination of the S-Wave Pi Pi Scattering Lengths From a Study of K - to Pi - Pi0 Pi0 Decays

    SciTech Connect

    Batley, J.R.; Culling, A.J.; Kalmus, G.; Lazzeroni, C.; Munday, D.J.; Slater, M.W.; Wotton, S.A.; Arcidiacono, R.; Bocquet, G.; Cabibbo, N.; Ceccucci, A.; Cundy, D.; Falaleev, V.; Fidecaro, M.; Gatignon, L.; Gonidec, A.; Kubischta, W.; Norton, A.; Maier, A.; Patel, M.; Peters, A.; /CERN /Dubna, JINR /Pisa, Scuola Normale Superiore /Dubna, JINR /Dubna, JINR /Birmingham U. /Dubna, JINR /CERN /Dubna, JINR /Dubna, JINR /Sofiya U. /Dubna, JINR /Dubna, JINR /Dubna, JINR /INFN, Perugia /Dubna, JINR /Dubna, JINR /Northwestern U. /Dubna, JINR /Chicago U., EFI /Marseille, CPPM /Chicago U., EFI /Edinburgh U. /George Mason U. /Edinburgh U. /Ferrara U. /INFN, Ferrara /Florence U. /INFN, Florence /Florence U. /INFN, Florence /Pisa, Scuola Normale Superiore /INFN, Florence /Modena U. /INFN, Florence /INFN, Florence /Urbino U. /INFN, Florence /Mainz U., Inst. Phys. /Bonn U. /Mainz U., Inst. Phys. /Northwestern U. /SLAC /Northwestern U. /Northwestern U. /Royal Holloway, U. of London /Northwestern U. /Northwestern U. /UCLA /Perugia U. /INFN, Perugia /Frascati /Perugia U. /INFN, Perugia /INFN, Perugia /INFN, Pisa /Pisa, Scuola Normale Superiore /INFN, Pisa /Pisa U. /INFN, Pisa /Pisa U. /INFN, Pisa /Barcelona, IFAE /Pisa U. /INFN, Pisa /DSM, DAPNIA, Saclay /DSM, DAPNIA, Saclay /CERN /DSM, DAPNIA, Saclay /Siegen U. /INFN, Turin /Turin U. /INFN, Turin /Bern U. /Turin U. /INFN, Turin /CERN /Turin U. /INFN, Turin /Madrid, CIEMAT /Vienna, OAW

    2012-03-29

    We report the results from a study of the full sample of {approx}6.031 x 10{sup 7} K{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup 0}{pi}{sup 0} decays recorded by the NA48/2 experiment at the CERN SPS. As first observed in this experiment, the {pi}{sup 0}{pi}{sup 0} invariant mass (M{sub 00}) distribution shows a cusp-like anomaly in the region around M{sub 00} = 2m{sub +}, where m{sub +} is the charged pion mass. This anomaly has been interpreted as an effect due mainly to the final state charge exchange scattering process {pi}{sup +}{pi}{sup -} {yields} {pi}{sup 0}{pi}{sup 0} in K{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup +}{pi}{sup -} decay. Fits to the M{sub 00} distribution using two different theoretical formulations provide the presently most precise determination of a{sub 0} - a{sub 2}, the difference between the {pi}{pi} S-wave scattering lengths in the isospin I = 0 and I = 2 states. Higher-order {pi}{pi} rescattering terms, included in the two formulations, allow also an independent, though less precise, determination of a{sub 2}.

  19. Pi in the Sky

    NASA Astrophysics Data System (ADS)

    O'Brien, W. P.

    2008-12-01

    Pi In The Sky (PITS) consists of a loose collection of virtual globe (VG) activities with a slight mathematical twist, wherein students search for interesting circular structures on the surface of Earth (Moon or other planets) and measure the circumference C and diameter D of each structure, using the built-in VG measure tool, in order to determine experimental values of pi from the C/D ratios. Examples of man-made circular structures visible using VG browsers include Fermilab and l"Arc de Triomphe roundabout; quasi-circular natural structures include certain volcano calderas and impact craters. Since a circle is but a special case of an ellipse, a natural extension of the activity involves making similar measurements of perimeter P, semi-major axis a, and semi-minor axis b of a visible elliptical structure (such as one of the thousands of elliptical Carolina bays, enigmatic depressions on the Atlantic Coast of North America) and solving for pi using Ramanujan's first approximation for the dependence of the perimeter of an ellipse on a and b. PITS exercises can be adapted to a wide range of student ages and teaching goals. For instance, K-6 students could measure C and D of the huge irrigation circles near Circle, Texas, to discover pi in the same way they might infer pi from measurements of coffee-can lids in math class. Middle school and high school students could move beyond man-made circles to consider the near-circularity of certain volcano calderas and impact craters in earth science units, make measurements for Olympus Mons on Mars or Crater Kepler on the moon in astronomy units, or search for circularity among Arctic thermokarst lakes as an introduction to climate change in tundra environments in environmental science units; such studies might ignite student curiosity about planetary processes. High school students of analytic geometry could examine several elliptical Carolina bays and calculate not only values of pi (as noted above) but also determine the

  20. Study of the D0 ---> K+ K- pi+ pi-

    SciTech Connect

    Link, J.M.; Yager, P.M.; Anjos, J.C.; Bediaga, I.; Gobel, C.; Machado, A.A.; Magnin, J.; Massafferri, A.; de Miranda, J.M.; Pepe, I.M.; Polycarpo, E.; dos Reis, A.C.; Carrillo, S.; Casimiro, E.; Cuautle, E.; Sanchez-Hernandez, A.; Uribe, C.; Vazquez, F.; Agostino, L.; Cinquini, L.; Cumalat, J.P. /Colorado U. /Fermilab /Frascati /Guanajuato U. /Illinois U., Urbana /Indiana U. /Korea U. /Kyungpook Natl. U. /INFN, Milan /Milan U. /North Carolina U. /Pavia U. /INFN, Pavia /Puerto Rico U., Mayaguez /South Carolina U. /Tennessee U. /Vanderbilt U. /Wisconsin U., Madison

    2004-11-01

    Using data from the FOCUS (E831) experiment at Fermilab, the authors present a new measurement for the Cabibbo-suppressed decay mode D{sup 0} {yields} K{sup +}K{sup -}{pi}{sup +}{pi}{sup -}. They measure: {Lambda}(D{sup 0} {yields} K{sup +}K{sup -}{pi}{sup +}{pi}{sup -})/{Lambda}(D{sup 0} {yields} K{sup -}{pi}{sup -}{pi}{sup +}{pi}{sup +}) = 0.0295 {+-} 0.0011 {+-} 0.0008. An amplitude analysis has been performed in order to determine the resonant substructure of this decay mode. The dominant components are the decays D{sup 0} {yields} K{sub 1}(1270){sup +} K{sup -}, D{sup 0} {yields} K{sub 1}(1400){sup +}K{sup -} and D{sup 0} {yields} {rho}(770){sup 0}{phi}(1020).

  1. Measurement and isobar-model analysis of the doubly differential cross section for the. pi. /sup +/ produced in. pi. /sup -/p. -->. pi. /sup +/. pi. /sup -/n

    SciTech Connect

    Manley, D.M.

    1981-11-01

    The doubly differential cross section d/sup 2/sigma/d..cap omega..dT for ..pi../sup +/ mesons produced in the reaction ..pi../sup -/p ..-->.. ..pi../sup +/..pi../sup -/n was measured at 203, 230, 256, and 358 MeV with a single-arm magnetic spectrometer. A set of five previous measurements at 254, 280, 292, 331, and 356 MeV was reanalyzed with the new measurements. Integrated cross sections were calculated for the combined data set with unprecedented accuracy for this energy range. The chiral-symmetry-breaking parameter was determined to be epsilon = -0.03 +- 0.26 by extrapolating the mean square modulus of the matrix element to threshold and comparing the threshold matrix element with the prediction of soft-pion theory. This value of epsilon is consistent with zero as required by the Weinberg Lagrangian. Measurements at the three highest energies were compared with the results of an isobar-model analysis of bubble-chamber events by an LBL-SLAC collaboration. After allowing for an overall normalization difference, the measurements at 331 and 358 MeV were in excellent agreement with the results of their analysis. The measurement at 292 MeV required variation of the PS11(epsilonN) amplitude, as well as the overall normalization, which could be due to the limited number of bubble-chamber events available for the LBL-SLAC analysis at this energy. A partial-wave analysis of the measurements was also carried out with the VPI isobar model. Within this model, the matrix element contains a background term calculated from a phenomenological ..pi..N Lagrangian that is consistent with the hypotheses of current algebra and PCAC. The reaction was found to be dominated by the initial P11 wave. Production of the ..delta.. isobar from initial D waves was found to be significant at the two highest energies.

  2. Review of Pi2 Models

    NASA Astrophysics Data System (ADS)

    Keiling, Andreas; Takahashi, Kazue

    2011-11-01

    More than half a century after the discovery of Pi2 pulsations, Pi2 research is still vigorous and evolving. Especially in the last decade, new results have provided supporting evidence for some Pi2 models, challenged earlier interpretations, and led to entirely new models. We have gone beyond the inner magnetosphere and have explored the outer magnetosphere, where Pi2 pulsations have been observed in unexpected places. The new Pi2 models cover virtually all magnetotail regions and their coupling, from the reconnection site via the lobes and plasma sheet to the ionosphere. In addition to understanding the Pi2 phenomenon in itself, it has also been important to study Pi2 pulsations in their role as transient manifestations of the coupling between the magnetosphere and the ionosphere. The transient Pi2 is an integral part of the substorm phenomenon, especially during substorm onset. Key questions about the workings of magnetospheric substorms are still awaiting answers, and research on Pi2 pulsations can help with those answers. Furthermore, the role of Pi2 pulsations in association with other dynamic magnetospheric modes has been explored in the last decade. Thus, the application of Pi2 research has expanded over the years, assuring that Pi2 research will remain active in this decade and beyond. Here we review recent advances, which have given us a new understanding of Pi2 pulsations generated at various places in the magnetosphere during different magnetospheric modes. We review seven Pi2 models found in the literature and show how they are supported by observations from spacecraft and ground observatories as well as numerical simulations. The models have different degrees of maturity; while some enjoy wide acceptance, others are still speculative.

  3. Study of the decay B0bar -> D* omega pi

    SciTech Connect

    Aubert, B.

    2006-04-24

    We report on a study of the decay {bar B}{sup 0} {yields} D*{sup +}{omega}{pi}{sup -} with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232 million B{bar B} decays, we measure the branching fraction {Beta}({bar B}{sup 0} {yields} D*{sup +}{omega}{pi}{sup -}) = (2.88 {+-} 0.21(stat.) {+-} 0.31(syst.)) x 10{sup -3}. We study the invariant mass spectrum of the {omega}{pi}{sup -} system in this decay. This spectrum is in good agreement with expectations based on factorization and the measured spectrum in {tau}{sup -} {yields} {omega}{pi}{sup -} {nu}{sub {tau}}. We also measure the polarization of the D*{sup +} as a function of the {omega}{pi}{sup -} mass. In the mass region 1.1 to 1.9 GeV we measure the fraction of longitudinal polarization of the D*{sup +} to be {Lambda}{sub L}/{Lambda} = 0.654 {+-} 0.042(stat.) {+-} 0.016(syst.). This is in agreement with the expectations from heavy-quark effective theory and factorization assuming that the decay proceeds as {bar B}{sup 0} {yields} D*{sup +}{rho}(1450), {rho}(1450) {yields} {omega}{pi}{sup -}.

  4. Study of the Tau- to Pi- Pi+ Pi- Pi0 Nu/Tau And Tau- to Pi- Pi- Pi+ Eta Nu/Tau Decays Using the BaBar Detector

    SciTech Connect

    Sobie, Randall; /Victoria U.

    2007-11-14

    The {tau}{sup -} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup -}{nu}{sub {tau}} and {tau}{sup -} {yields} {pi}{sup -}{pi}{sup -}{pi}{sup +}{eta}{nu}{sub {tau}} decays have been studied with the BABAR detector. Preliminary branching fractions on the two modes are presented. The {tau}{sup -} {yields} {pi}{sup -}{pi}{sup -}{pi}{sup +}{eta}{nu}{sub {tau}} mode is found to have a large contribution from the {tau}{sup -} {yields} {omega}{pi}{sup -}{nu}{sub {tau}} decay. The {tau}{sup -} {yields} {pi}{sup -}{pi}{sup -}{pi}{sup +}{eta}{nu}{sub {tau}} decay is studied using the {eta} {yields} {gamma}{gamma} mode and the {tau}{sup -} f{sub 1}(1285){pi}{sup -}{nu}{sub {tau}} decay is seen to be the primary source of these decays. A 90% confidence level upper limit is placed on the {tau}{sup -} {yields} {eta}{prime}(958){pi}{sup -}{nu}{sub {tau}} decay which proceeds through a second-class current and is expected to be forbidden in the limit of perfect isospin symmetry.

  5. Photoproduction of {pi}{pi} Pairs off {sup 7}Li

    SciTech Connect

    Maghrbi, Yasser

    2011-10-21

    This paper reports on the quasi-free photoproduction of {pi}{sup 0}{pi}{sup 0} and {pi}{sup 0}{pi}{sup +/-} pairs from {sup 7}Li in view of the in-medium properties of hadrons. Measurements have been done using the CB/TAPS detector setup and the Glasgow photon tagging spectrometer for incident photon energies up to 820 MeV. At small invariant masses, an enhancement of the neutral invariant mass distributions is seen compared to the mixed charged channel and could be explained either by an in-medium modification of the {pi}{pi} interaction in the I = J = 0 channel or by effects related to the final state interactions.

  6. Agreement among 2 x 2 Agreement Indices.

    ERIC Educational Resources Information Center

    Conger, Anthony J.; Ward, David G.

    1984-01-01

    Sixteen measures of reliability for two-category nominal scales are compared. Upon correcting for chance agreement, there are only five distinct indices: Fleiss's modification of A-sub-1, the phi coefficient, Cohen's kappa, and two intraclass coefficients. Recommendations for choosing an agreement index are made based on definitions, magnitude,…

  7. Model-independent constraints on the weak phase {alpha} (or {phi}{sub 2}) and QCD penguin pollution in B{yields}{pi}{pi} decays

    SciTech Connect

    Xing Zhizhong; Zhang He

    2005-03-01

    We present an algebraic isospin approach towards a more straightforward and model-independent determination of the weak phase {alpha} (or {phi}{sub 2}) and QCD penguin pollution in B{yields}{pi}{pi} decays. The world averages of current experimental data allow us to impose some useful constraints on the isospin parameters of B{yields}{pi}{pi} transitions. We find that the magnitude of {alpha} (or {phi}{sub 2}) extracted from the indirect CP violation in the {pi}{sup +}{pi}{sup -} mode is in agreement with the standard-model expectation from other indirect measurements, but its fourfold discrete ambiguity has to be resolved in the near future.

  8. Exotic Meson Decay to {omega}{pi}{sup 0}{pi}{sup -}

    SciTech Connect

    M. Lu; G.S. Adams; T. Adams; Z. Bar-Yam; J.M. Bishop; V.A. Bodyagin; D.S. Brown; N.M. Cason; S.U. Chung; J.P. Cummings; K. Danyo; A.I. Demianov; S.P. Denisov; V. Dorofeev; J.P. Dowd; P. Eugenio; X.L. Fan; A.M. Gribushin; R.W. Hackenburg; M. Hayek; J. Hu; E.I. Ivanov; D. Joffe; I. Kachaev; W. Kern; E. King; O.L. Kodolova; V.L. Korotkikh; M.A. Kostin; J. Kuhn; V.V. Lipaev; J.M. LoSecco; J.J. Manak; J. Napolitano; M. Nozar; C. Olchanski; A.I. Ostrovidov; T.K. Pedlar; A.V. Popov; D.I. Ryabchikov; L.I. Sarycheva; K.K. Seth; N. Shenhav; X. Shen; W.D. Shephard; N.B. Sinev; D.L. Stienike; J.S. Suh; S.A. Taegar; A. Tomaradze; I.N. Vardanyan; D.P. Weygand; D.B. White; H.J. Willutzki; M. Witkowski; A.A. Yershov

    2004-05-01

    A partial-wave analysis of the mesons from the reaction {pi}{sup -} p {yields} {pi}{sup +}{pi}{sup -}{pi}{sup -}{pi}{sup 0}{pi}{sup 0}p has been performed. The data show b{sub 1}{pi} decay of the spin-exotic states {pi}{sub 1}(1600) and {pi}{sub 1}(2000). Three isovector 2{sup -+} states were seen in the {omega}{rho}{sup -} decay channel. In addition to the well known {pi}{sub 2}(1670), signals were also observed for {pi}{sub 2}(1880) and {pi}{sub 2}(1970).

  9. P wave {pi}{pi} amplitude from dispersion relations

    SciTech Connect

    Szczepaniak, Adam P.; Guo, Peng; Battaglieri, M.; De Vita, R.

    2010-08-01

    We solve the dispersion relation for the P-wave {pi}{pi} amplitude. We discuss the role of the left-hand cut vs the Castillejo-Dalitz-Dyson pole contribution and compare the solution with a generic quark model description. We review the generic properties of analytical partial wave scattering and production amplitudes and discuss their applicability and fits of experimental data.

  10. Search For the Highly Suppressed Decays B- -> K+ pi- pi- and B- -> K- K- pi+

    SciTech Connect

    Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Lopez, L.; Palano, Antimo; Pappagallo, M.; Eigen, G.; Stugu, Bjarne; Sun, L.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Cahn, Robert N.; Jacobsen, R.G.; /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Consorzio Milano Ricerche /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Napoli Seconda U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Banca di Roma /Frascati /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2008-08-11

    The authors report a search for the decays B{sup -} {yields} K{sup +}{pi}{sup -}{pi}{sup -} and B{sup -} {yields} K{sup -}K{sup -}{pi}{sup +}, which are highly suppressed in the Standard Model. Using a sample of (467 {+-} 5) x 10{sup 6} B{bar B} pairs collected with the BABAR detector, they do not see any evidence of these decays and determine 90% confidence level upper limits of {Beta}(B{sup -} {yields} K{sup +}{pi}{sup -}{pi}{sup -}) < 9.5 x 10{sup -7} and {Beta}(B{sup -} {yields} K{sup -}K{sup -}{pi}{sup +}) < 1.6 x 10{sup -7} on the corresponding branching fractions, including systematic uncertainties.

  11. Study of the anomalous process {gamma}{pi}{yields}{pi}{pi}

    SciTech Connect

    Roberts, C.D.; Alkofer, R.

    1995-08-01

    The {gamma}{pi} {yields} {pi}{pi} form factor, F{sup 3{pi}}(s), is calculated in generalized impulse approximation within the Dyson-Schwinger Equation framework. This is an anomalous process and as such its form is a fundamentally important characteristic of the quantum field theoretical structure of QCD because it signals the breaking of the U{sub A} symmetry by quantization. There is only one experimental measurement of F{sup 3{pi}}(s) at s {approximately} 8m{sub {pi}}{sup 2}, which has large errors, however, there is an approved experiment at CEBAF to study F{sup 3{pi}}(s) in the reaction {gamma}{pi}{sup +} {yields} {pi}{sup +}{pi}{sup 0} near threshold. This is to be done by measuring {gamma}p {yields} {pi}{sup +}{pi}{sup 0}n cross sections near t {approx_equal} {sup -}m{sub {pi}}{sup 2}. Present calculations of F{sup 3{pi}}(s) are either unrelated to QCD or rely on {open_quotes}low-energy{close_quotes} expansions. The approach we employ, which manifestly incorporates the large space-like-q{sup 2} renormalization group properties of QCD and allows a realistic extrapolation to small space-like-q{sup 2}, allows us to go beyond such {open_quotes}low-energy{close_quotes} expansions and relate F{sup 3{pi}}(s) to the structure of the effective quark-quark interaction in the infrared. Our preliminary results are encouraging. The chiral limit value, F{sup 3{pi}}(s=0), obtained in our approach agrees with that which one expects from the connection between anomalous processes and the quantization of QCD. Our results also indicate that the form factor grows smoothly away from the chiral point. Our detailed calculation will allow us to address the question of the reliability of the extrapolation to the pion mass shell that is necessary in interpreting the data.

  12. Large electroweak penguin contribution in B{yields}K{pi} and {pi}{pi} decay modes

    SciTech Connect

    Mishima, Satoshi; Yoshikawa, Tadashi

    2004-11-01

    We discuss a possibility of large electroweak penguin contribution in B{yields}K{pi} and {pi}{pi} from recent experimental data. The experimental data may be suggesting that there are some discrepancies between the data and theoretical estimation in the branching ratios of them. In B{yields}K{pi} decays, to explain it, a large electroweak penguin contribution and large strong phase differences seem to be needed. The contributions should appear also in B{yields}{pi}{pi}. We show, as an example, a solution to solve the discrepancies in both B{yields}K{pi} and B{yields}{pi}{pi}. However the magnitude of the parameters and the strong phase estimated from experimental data are quite large compared with the theoretical estimations. It may be suggesting some new physics effects are included in these processes. We will have to discuss about the dependence of the new physics. To explain both modes at once, we may need large electroweak penguin contribution with new weak phases and some SU(3) breaking effects by new physics in both QCD and electroweak penguin-type processes.

  13. Possible resolution of the B{yields}{pi}{pi}, {pi}K puzzles

    SciTech Connect

    Li Hsiangnan; Mishima, Satoshi

    2011-02-01

    We show that there exist uncanceled soft divergences in the k{sub T} factorization for nonfactorizable amplitudes of two-body nonleptonic B meson decays, similar to those identified in hadron hadroproduction. These divergences can be grouped into a soft factor using the eikonal approximation, which is then treated as an additional nonperturbative input in the perturbative QCD formalism. Viewing the special role of the pion as a qq bound state and as a pseudo Nambu-Goldstone boson, we postulate that the soft effect associated with it is significant. This soft factor enhances the nonfactorizable color-suppressed tree amplitudes, such that the branching ratios B({pi}{sup 0}{pi}{sup 0}) and B({pi}{sup 0}{rho}{sup 0}) are increased under the constraint of the B({rho}{sup 0}{rho}{sup 0}) data, the difference between the direct CP asymmetries A{sub CP}({pi}{sup {+-}}K{sup {+-}}) and A{sub CP}({pi}{sup 0}K{sup {+-}}) is enlarged, and the mixing-induced CP asymmetry S{sub {pi}}{sup 0}{sub K{sub S}} is reduced. Namely, the known {pi}{pi} and {pi}K puzzles can be resolved simultaneously.

  14. Archimedes and Pi-Revisited.

    ERIC Educational Resources Information Center

    Bidwell, James K.

    1994-01-01

    Archimedes' method for estimating the value of pi is developed and compared with the Gregory-Machin infinite series method. Programs for the TI-81 calculator for finding the upper and lower bounds using the classical method and estimating pi using infinite series are provided.(Author/MKR)

  15. The phase-shift of isospin-2 pi-pi scattering from lattice QCD

    SciTech Connect

    Jozef J. Dudek, Robert G. Edwards, Michael J. Peardon, David G. Richards, Christopher E. Thomas

    2011-04-01

    Finite-volume lattice QCD calculations offer the possibility of extracting resonance parameters from the energy-dependent elastic phase-shift computed using the L\\"uscher technique. In this letter, as a trial of the method, we report on the extraction of the non-resonant phase-shift for $S$ and $D$-wave $\\pi\\pi$ isospin-2 scattering from dynamical lattice QCD computations. We define a variational basis of operators resembling pairs of pions of definite relative momentum and extract a spectrum of excited states that maps to phase-shifts at a set of discrete scattering momenta. Computations are performed with pion masses between $400$ and $520$ MeV on multiple spatial volumes. We observe no significant quark mass dependence in the phase-shifts extracted which are in reasonable agreement with the available experimental data at low momentum.

  16. Analyzing power measurements for the (. pi. sup + ,. pi. sup 0 ) reaction on a polarized sup 13 C target

    SciTech Connect

    Goergen, J.J.

    1991-05-01

    The analyzing powers A{sub y} differential cross sections d{sigma}/d{Omega} for the reaction {sup 13}C({pi}{sup +},{pi}{sup 0}){sup 13}N have been measured for forward scattering angles at an incident pion kinetic energy of T{sub pi}{sup +} = 163 MeV by using a transversely polarized target. Analyzing powers and reaction cross sections impose stringent constrains on nuclear reaction models and can be used to test the present understanding of nuclear structure for 1p-shell nuclei. The resulting A{sub y} are compared to the predictions of first-order Distorted Wave Impulse Approximation (DWIA) calculations, which reproduce well the differential cross sections. Although there is qualitative agreement at forward angles, the quantitative agreement is poor, especially at scattering angles larger than 50{degrees}. Since the DWIA calculations do not appear to be strongly sensitive to the assumed nuclear structure model, the discrepancy in describing the analyzing powers suggests that the reaction mechanism may not yet be well understood and higher order corrections may be important. Also measured were the analyzing powers for the elementary charge exchange reaction {pi}{sup {minus}} {bar p} {yields} {pi}{degrees}n over the same angular range and at an incident pion kinetic energy of T{sub pi}{minus} = 161 MeV. The results are compared to the most recents phase shift predictions. Within the experimental uncertainties, phase shift calculations agree with the measured A{sub y} and no changes in the {pi}N phase shifts near the P{sub 33} resonance are needed to describe the data.

  17. Role of P-wave inelasticity in J/{psi}{yields}{pi}{sup +}{pi}{sup -}{pi}{sup 0}

    SciTech Connect

    Guo Peng; Mitchell, Ryan; Szczepaniak, Adam P.

    2010-11-01

    We discuss the importance of inelasticity in the P-wave {pi}{pi} amplitude on the Dalitz distribution of 3{pi} events in J/{psi} decay. The inelasticity, which becomes sizable for {pi}{pi} masses above 1.4 GeV, is attributed to KK{yields}{pi}{pi} rescattering. We construct an analytical model for the two-channel scattering amplitude and use it to solve the dispersion relation for the isobar amplitudes that parametrize the J/{psi} decay. We present comparisons between theoretical predictions for the Dalitz distribution of 3{pi} events with available experimental data.

  18. Observables for the pd {yields} {sup 3}H{pi}{sup +} and pd {yields} {sup 3}He{pi}{sup 0} Reactions in a pp {yields} d{pi}{sup +} Model

    SciTech Connect

    Falk, W.R.

    2000-12-31

    Differential cross sections and spin observables A{sub y}, iT{sub 11}, T{sub 20}, and T{sub 22} are calculated for the pd {yields} {sup 3}H{pi}{sup +} reaction in a pp {yields} d{pi}{sup +} model at energies near threshold. The results are compared with experimental data for the reactions {rvec p}d {yields} {sup 3}He{pi}{sup 0} and {rvec d}p {yields} {sup 3}He{pi}{sup 0}. Good agreement of these predictions with the data for the proton analyzing power is obtained, and for most of the other observables satisfactory agreement is found. Effects of various assumptions in the model are investigated and discussed.

  19. Testing the dynamics of B ->pi pi and constraints onalpha

    SciTech Connect

    Grossman, Yuval; Hocker, Andreas; Ligeti, Zoltan; Pirjol, Dan

    2005-07-07

    In charmless nonleptonic B decays to {pi}{pi} or {rho}{rho}, the ''color allowed'' and ''color suppressed'' tree amplitudes can be studied in a systematic expansion in {alpha}{sub s}(m{sub b}) and {Lambda}{sub QCD}/m{sub b}. At leading order in this expansion their relative strong phase vanishes. The implications of this prediction are obscured by penguin contributions. They propose to use this prediction to test the relative importance of the various penguin amplitudes using experimental data. The present B {yields} {pi}{pi} data suggest that there are large corrections to the heavy quark limit, which can be due to power corrections to the tree amplitudes, large up-penguin amplitude, or enhanced weak annihilation. Because the penguin contributions are smaller, the heavy quark limit is more consistent with the B {yields} {rho}{rho} data, and its implications may become important for the extraction of {alpha} from this mode in the future.

  20. Photoproduction of $\\pi^+ \\pi^-$ meson pairs on the proton

    SciTech Connect

    Marco A. Battaglieri; DeVita, Raffaella; Szczepaniak, Adam P.

    2009-10-01

    The exclusive reaction $\\gamma p \\to p \\pi^+ \\pi^-$ was studied in the photon energy range 3.0 - 3.8 GeV and momentum transfer range $0.4<-t<1.0$ GeV$^2$. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. In this kinematic range the integrated luminosity was about 20 pb$^{-1}$. The reaction was isolated by detecting the $\\pi^+$ and proton in CLAS, and reconstructing the $\\pi^-$ via the missing-mass technique. Moments of the di-pion decay angular distributions were derived from the experimental data. Differential cross sections for the $S$, $P$, and $D$-waves in the $M_{\\pi^+\\pi^-}$ mass range $0.4-1.4$ GeV were derived performing a partial wave expansion of the extracted moments. Besides the dominant contribution of the $\\rho(770)$ meson in the $P$-wave, evidence for the $f_0(980)$ and the $f_2(1270)$ mesons was found in the $S$ and $D$-waves, respectively. The differential production cross sections $d\\sigma/dt$ for individual waves in the mass range of the above-mentioned mesons were extracted. This is the first time the $f_0(980)$ has been measured in a photoproduction experiment.

  1. Omega Psi Phi Fraternity, Pi Chapter: African American Male Identity and Fraternity Culture, 1923-2003

    ERIC Educational Resources Information Center

    Johnson, Edwin T.

    2009-01-01

    Pi Chapter of the Omega Psi Phi Fraternity, Inc. at Morgan State University made a significant contribution to the identity construction of college-educated African American men in the state of Maryland. The initiates of Pi Chapter constructed identities that allowed the members to see themselves as participants in mainstream American society as…

  2. Reexamining B{yields}{pi}{pi}, {pi}K decays in QCD factorization approach

    SciTech Connect

    Li Xinqiang; Yang Yadong

    2005-10-01

    Motivated by the recent experimental data, we have revisited the B{yields}{pi}K,{pi}{pi} decays in the framework of QCD factorization, with inclusion of the important strong penguin corrections of order {alpha}{sub s}{sup 2} induced by b{yields}Dg*g* (D=d or s and g* denotes an off-shell gluon) transitions. We find that these higher order strong penguin contributions can provide {approx}30% enhancement to the penguin-dominated B{yields}{pi}K decay rates, and such an enhancement can improve the consistency between the theoretical predictions and the experimental data significantly, while for the tree-dominated B{yields}{pi}{pi} decays, these higher order contributions play only a minor role. When these strong penguin contributions are summed, only a small strong phase remains and the direct CP asymmetries get small corrections. We also find that patterns of the ratios between the CP-averaged branching fractions remain nearly unaffected even after including these higher order corrections and the {pi}K puzzle still persists. Our results may indicate that to resolve the puzzle one would have to resort to new physics contributions in the electroweak penguin sector as found by Buras et al.

  3. Study of the D0 \\to Pi Pi- Pi0 Decay at BaBar

    SciTech Connect

    Gaspero, Mario; /Rome U. /INFN, Rome

    2012-04-06

    The Dalitz-plot of the decay D{sup 0} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} measured by the BABAR collaboration shows the structure of a final state having quantum numbers I{sup G}J{sup PC} = 0{sup -}0{sup 2-}. An isospin analysis of this Dalitz-plot finds that the fraction of the I = 0 contribution is about 96%. This high I = 0 contribution is unexpected because the weak interaction violates the isospin.

  4. S-wave K- pi+ system in D+ ---> K- pi+ pi+ decays from Fermilab E791

    SciTech Connect

    Meadows, B.T.; /Cincinnati U.

    2005-06-01

    A new approach to the analysis of three body decays is presented. Model-independent results are obtained for the S-wave K{pi} amplitude as a function of K{pi} invariant mass. These are compared with results from K{sup -}{pi}{sup +} elastic scattering, and the prediction of the Watson theorem, that the phase behavior be the same below K{eta}' threshold, is tested. Contributions from I = 1/2 and I = 3/2 are not resolved in this study. If I = 1/2 dominates, however, the Watson theorem does not describe these data well.

  5. Measurements of the branching fractions for B{sub (s)}{yields}D{sub (s)}{pi}{pi}{pi} and {Lambda}{sub b}{sup 0}{yields}{Lambda}{sub c}{sup +}{pi}{pi}{pi}

    SciTech Connect

    Aaij, R.; Bauer, Th.; Beuzekom, M. van; Carvalho Akiba, K.; Coco, V.; van Eijk, D.; Farinelli, C.; Heijne, V.; Hulsbergen, W.; Jans, E.; Jansen, F.; Koppenburg, P.; Kozlinskiy, A.; van Leerdam, J.; Merk, M.; Mous, I.; Oggero, S.; Pellegrino, A.; du Pree, T.; Storaci, B.

    2011-11-01

    Branching fractions of the decays H{sub b}{yields}H{sub c}{pi}{sup -}{pi}{sup +}{pi}{sup -} relative to H{sub b}{yields}H{sub c}{pi}{sup -} are presented, where H{sub b} (H{sub c}) represents B{sup 0} (D{sup +}), B{sup -} (D{sup 0}), B{sub s}{sup 0} (D{sub s}{sup +}), and {Lambda}{sub b}{sup 0} ({Lambda}{sub c}{sup +}). The measurements are performed with the LHCb detector using 35 pb{sup -1} of data collected at {radical}(s)=7 TeV. The ratios of branching fractions are measured to be [B(B{sup 0}{yields}D{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -})]/[B(B{sup 0}{yields}D{sup +}{pi}{sup -})]=2.38{+-}0.11{+-}0.21, [B(B{sup -}{yields}D{sup 0}{pi}{sup -}{pi}{sup +}{pi}{sup -})]/[B(B{sup -}{yields}D{sup 0}{pi}{sup -})]= 1.27{+-}0.06{+-}0.11, [B(B{sub s}{sup 0}{yields}D{sub s}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -})]/[B(B{sub s}{sup 0}{yields}D{sub s}{sup +}{pi}{sup -})]=2.01{+-}0.37{+-}0.20, [B({Lambda}{sub b}{sup 0}{yields}{Lambda}{sub c}{sup +}{pi}{sup -} {pi}{sup +}{pi}{sup -})]/[B({Lambda}{sub b}{sup 0}{yields}{Lambda}{sub c}{sup +}{pi}{sup -})]=1.43{+-}0.16{+-}0.13 We also report measurements of partial decay rates of these decays to excited charm hadrons. These results are of comparable or higher precision than existing measurements.

  6. Search for tau- ---> 4pi- 3pi+ (pi0) nu/tau Decays

    SciTech Connect

    Ter-Antonian, R.; Kass, R.; Allmendinger, T.; Hast, C.; /SLAC

    2005-06-21

    A search for the decay of the {tau} lepton to seven charged pions and at most one {pi}{sup 0} was performed using the BABAR detector at the PEP-II e{sup +}e{sup -} collider. The analysis uses data recorded on and near the {Upsilon}(4S) resonance between 1999 and 2003, a total of 124.3 fb{sup -1}. They observe 7 events with an expected background of 11.9 {+-} 2.2 events and calculate a preliminary upper limit of BR({tau}{sup -} {yields} 4{pi}{sup -} 3{pi}{sup +}({pi}{sup 0}){nu}{sub {tau}}) < 2.7 x 10{sup -7} at 90% CL. This is a significant improvement over the previous limit established by the CLEO Collaboration.

  7. Insights gained using HHMS-PI from the Sun to Voyager 2

    NASA Astrophysics Data System (ADS)

    Intriligator, Devrie S.; Detman, Thomas; Dryer, Murray; Intriligator, James; Sun, Wei; Webber, William R.; Deehr, Charles

    2012-05-01

    We extended the three-dimensional (3D) time-dependent magnetohydrodynamic (MHD) Hybrid Heliospheric Modeling System with Pickup Protons (HHMS-PI) [1] out to Voyager 2 (V2) and to 75 AU. HHMS-PI starts at the Sun and uses pre-and post-event background mode source surface (SS) solar inputs and solar event inputs. Our scientific results include good agreement between the HHMS-PI simulated parameters of the solar wind (SW) and interplanetary magnetic field (IMF) measurements at ACE, Ulysses, and Cassini. HHMS-PI simulates well the strong shocks observed at ACE, Ulysses, and Cassini associated with the Halloween 2003 solar events. This agreement indicates that HHMS-PI can provide good simulations for the Sedov strong shock limit. Comparisons between HHMS-PI simulated shock propagation from the Sun to Ulysses and Cassini and the spacecraft measurements of shock arrivals indicates that pickup protons slow the propagation of shocks to Ulysses and Cassini. Our simulations also demonstrate the importance of asymmetric flows in latitude and in longitude. For the Halloween 2003 solar events the HHMS-PI simulations show the large extent in latitude and in longitude of the shocks. The HHMS-PI simulations also indicate that IMF sector boundaries are greatly affected by the SW/IMF.

  8. Dalitz Plot Analysis of B- -> D+ pi- pi-

    SciTech Connect

    Aubert, : B.

    2009-01-29

    The author reports on a Dalitz plot analysis of B{sup -} {yields} D{sup +}{pi}{sup -}{pi}{sup -} decays, based on a sample of about 383 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. They find the total branching fraction of the three-body decay: {Beta}(B{sup -} {yields} D{sup +} {pi}{sup -}{pi}{sup -}) = (1.08 {+-} 0.01 {+-} 0.05) x 10{sup -3}. the masses and widths of D*{sub 2}{sup 0} and D*{sub 0}{sup 0}, the 2{sup +} and 0{sup +} c{bar u} P-wave states decaying to D{sup +}{pi}{sup -}, are measured: m{sub D*{sub 2}{sup 0}} = (2460.4 {+-} 1.2 {+-} 1.2 {+-} 1.9) MeV/c{sup 2}, {Lambda}{sub D*{sub 2}{sup 0}} = (41.8 {+-} 2.5 {+-} 2.1 {+-} 2.0) MeV, m{sub D*{sub 0}{sup 0}} = (2297 {+-} 8 {+-} 5 {+-} 19) MeV/c{sup 2} and {Lambda}{sub D*{sub 0}{sup 0}} = (273 {+-} 12 {+-} 17 {+-} 45) MeV. The stated errors reflect the statistical and systematic uncertainties, and the uncertainty related to the assumed composition of signal events and the theoretical model.

  9. Agreement, Shells, and Focus.

    ERIC Educational Resources Information Center

    Simpson, Andrew; Wu, Zoe

    2002-01-01

    Reconsiders development and licensing of agreement as a syntactic projection and argues for a productive developmental relation between agreement and the category of focus. Suggests that focus projections are initially selected by a variety of functional heads with real semantic content, then, over time decays into a simple concord shell. Upon…

  10. Non-Proliferation Agreements.

    ERIC Educational Resources Information Center

    Swalec, John J.

    1981-01-01

    Discusses five kinds of cooperative agreements established by the College of Lake County (IL): those with other community colleges/technical institutes; the military; business, industry, and organizations; secondary schools; and community and special interest groups. Pays particular attention to two kinds of agreements with other colleges. (CAM)

  11. Cooperative Agreements Study Report.

    ERIC Educational Resources Information Center

    Lawton, R. E.; Magruder, D.

    During the 1983 meeting of the Florida Legislature, action was taken to begin a systematic study of the level of cooperation between the Florida public schools K-12 program and the community and junior colleges. The goals and objectives of the Cooperative Agreements Study were to review and compile a list of the cooperative agreements and identify…

  12. The Helsinki Agreement

    ERIC Educational Resources Information Center

    Babel: Journal of the Australian Federation of Modern Language Teachers' Associations, 1977

    1977-01-01

    A reprint of sections of the Helsinki agreement dealing with foreign languages and civilization, and cooperation and exchanges in the field of education. The agreement supports wider knowledge of foreign languages and promotes exchanges, cooperation, lexicography, and specialized programs in adult education. (AMH)

  13. The recoil proton polarization in. pi. p elastic scattering

    SciTech Connect

    Seftor, C.J.

    1988-09-01

    The polarization of the recoil proton for ..pi../sup +/p and ..pi../sup -/p elastic scattering has been measured for various angles at 547 MeV/c and 625 MeV/c by a collaboration involving The George Washington University; the University of California, Los Angeles; and Abilene Christian University. The experiment was performed at the P/sup 3/ East experimental area of the Los Alamos Meson Physics Facility. Beam intensities varied from 0.4 to 1.0 x 10/sup 7/ ..pi../sup -/'s/sec and from 3.0 to 10.0 x 10/sup 7/ ..pi../sup +/'s/sec. The beam spot size at the target was 1 cm in the horizontal direction by 2.5 cm in the vertical direction. A liquid-hydrogen target was used in a flask 5.7 cm in diameter and 10 cm high. The scattered pion and recoil proton were detected in coincidence using the Large Acceptance Spectrometer (LAS) to detect and momentum analyze the pions and the JANUS recoil proton polarimeter to detect and measure the polarization of the protons. Results from this experiment are compared with previous measurements of the polarization, with analyzing power data previously taken by this group, and to partial-wave analysis predictions. 12 refs., 53 figs., 18 tabs.

  14. Dynamical coupled-channels model of {pi}N scattering in the W{<=}2 GeV nucleon resonance region

    SciTech Connect

    Julia-Diaz, B.; Lee, T.-S. H.; Matsuyama, A.; Sato, T.

    2007-12-15

    As a first step to analyze the electromagnetic meson production reactions in the nucleon resonance region, the parameters of the hadronic interactions of a dynamical coupled-channels model, developed in Physics Reports 439, 193 (2007), are determined by fitting the {pi}N-scattering data. The channels included in the calculations are {pi}N,{eta}N, and {pi}{pi}N, which has {pi}{delta},{rho}N, and {sigma}N resonant components. The nonresonant meson-baryon interactions of the model are derived from a set of Lagrangians by using a unitary transformation method. One or two bare excited nucleon states in each of S,P,D, and F partial waves are included to generate the resonant amplitudes in the fits. The parameters of the model are first determined by fitting as much as possible the empirical {pi}N elastic-scattering amplitudes of SAID up to 2 GeV. We then refine and confirm the resulting parameters by directly comparing the predicted differential cross section and target polarization asymmetry with the original data of the elastic {pi}{sup {+-}}p{yields}{pi}{sup {+-}}p and charge-exchange {pi}{sup -}p{yields}{pi}{sup 0}n processes. The predicted total cross sections of {pi}N reactions and {pi}N{yields}{eta}N reactions are also in good agreement with the data. Applications of the constructed model in analyzing the electromagnetic meson production data as well as the future developments are discussed.

  15. Precision measurement of {pi}{pi} scattering lengths at the NA48/2 experiment

    SciTech Connect

    Venditti, Stefano

    2010-12-28

    The NA48/2 experiment at CERN [1] collected {approx}18{center_dot}10{sup 9} charged kaon decays during the years 2003/4. Along with the primary goals of the collaboration, i.e. the measurement of the CP-violating asymmetry in the K{sup {+-}}{yields}{pi}{sup {+-}}{pi}{sup +}{pi}{sup -} and K{sup {+-}}{yields}{pi}{sup {+-}}{pi}{sup 0}{pi}{sup 0} decays thanks to the simultaneous collection of K{sup +} and K{sup -} events, the collected data allowed to perform many other interesting analyses. In this paper two independent measurements of {pi}{pi} scattering lengths will be reviewed, using NA48/2 data from the K{sup {+-}}{yields}e{sup {+-}}{nu}{pi}{sup +}{pi}{sup -} decay and from the cusp effect in K{sup {+-}}{yields}{pi}{sup {+-}}{pi}{sup +}{pi}{sup -} respectively.

  16. First Observation of the Cabibbo-suppressed Decays Xi+(c) ---> Sigma+ pi- pi+ and Xi+(c) ---> Sigma- pi+ pi+ and Measurement of their Branching Ratios

    SciTech Connect

    Vazquez-Jauregui, E.; Engelfried, J.; Akgun, U.; Alkhazov, Georgiy; Amaro-Reyes, J.; Atamantchouk, A.G.; Ayan, Ahmet Sedat; Balatz, M.Y.; Blanco-Covarrubias, A.; Bondar, N.F.; Cooper, Peter S.; /Fermilab /Michigan U., Flint

    2008-04-01

    The authors report the first observation of two Cabibbo-suppressed decay modes, {Xi}{sub c}{sup +} {yields} {Sigma}{sup +}{pi}{sup -}{pi}{sup +} and {Xi}{sub c}{sup +} {yields} {Sigma}{sup -} {pi}{sup +}{pi}{sup +}. They observe 56 {+-} 13 over a background of 21, and 23 {+-} 7 over a background of 12 events, respectively, for the signals. The data were accumulated using the SELEX spectrometer during the 1996-1997 fixed target run at Fermilab, chiefly from a 600 GeV/c {Sigma}{sup -} beam. The branching ratios of the decays relative to the Cabibbo-favored {Xi}{sub c}{sup +} {yields} {Xi}{sup -}{pi}{sup +}{pi}{sup +} are measured to be B({Xi}{sub c}{sup +} {yields} {Sigma}{sup +}{pi}{sup -}{pi}{sup +})/B({xi}{sub c}{sup +} {yields} {Xi}{sup -} {pi}{sup +}{pi}{sup +}) = 0.50 {+-} 0.20, and B({Xi}{sub c}{sup +} {yields} {Sigma}{sup -}{pi}{sup +}{pi}{sup +})/B({Xi}{sub c}{sup +} {yields} {Xi}{sup -}{pi}{sup +}{pi}{sup +}) = 0.23 {+-} 0.11, respectively. They also report branching ratios for the same decay modes of the {Lambda}{sub c}{sup +} relative to {Lambda}{sub c}{sup +} {yields} pK{sup -}{pi}{sup +}.

  17. Diffractive Dissociation into {pi}{sup -{pi}-{pi}+} Final States at COMPASS

    SciTech Connect

    Haas, Florian

    2010-08-05

    QCD predicts gluonic excitations like hybrids to contribute to the meson spectrum in addition to qq-bar pair configurations. The most promising way to identify such states is the search for J{sup PC} quantum number combinations which are forbidden in the constituent quark model. The fixed target COMPASS experiment at CERN offers the opportunity to search for such states in the light quark sector with an unprecedented statistics.Diffractive reactions of 190 GeV/c pions on a lead target were studied by COMPASS during a pilot run in 2004. A Partial Wave Analysis (PWA) of the {pi}{sup -{pi}-{pi}+} final state with 42 waves including acceptance corrections through a phase-space Monte Carlo simulation of the spectrometer was performed. The exotic {pi}{sub 1}(1600) meson with quantum numbers J{sup PC} = 1{sup -+} has been clearly established in the rho-pi decay channel with a mass of 1660{+-}10(stat) MeV/c{sup 2} and a width of 269{+-}21(stat) MeV/c{sup 2}. The improved detector performance in 2008 allows us to study this channel with significantly higher statistics. First results of the ongoing analysis of the 2008 data taking period, using a 190 GeV/c pion beam on a liquid hydrogen target are presented in this paper.

  18. Diffractive Dissociation into {pi}{sup -{pi}-{pi}+} Final States at COMPASS

    SciTech Connect

    Haas, Florian

    2011-10-24

    QCD predicts gluonic excitations like hybrids to contribute to the meson spectrum in addition to qq-bar pair configurations. The most promising way to identify such states is the search for J{sup PC} quantum number combinations which are forbidden in the constituent quark model. The fixed target COMPASS experiment at CERN offers the opportunity to search for such states in the light quark sector with an unprecedented statistics.Diffractive reactions of 190 GeV/c pions on a lead target were studied by COMPASS during a pilot run in 2004. A Partial Wave Analysis (PWA) of the {pi}{sup -{pi}-{pi}+} final state with 42 waves including acceptance corrections through a phase-space Monte Carlo simulation of the spectrometer was performed. The exotic {pi}{sup 1}(1600) meson with quantum numbers J{sup PC} = 1{sup -+} has been clearly established in the rho-pi decay channel with a mass of 1660{+-}10(stat) MeV/c{sup 2} and a width of 269{+-}21(stat) MeV/c{sup 2}. The improved detector performance in 2008 allows us to study this channel with significantly higher statistics. First results of the ongoing analysis of the 2008 data taking period, using a 190 GeV/c pion beam on a liquid hydrogen target are presented in this paper.

  19. piRNA-Guided Transposon Cleavage Initiljates Zucchini-Dependent, Phased piRNA Production

    PubMed Central

    Han, Bo W; Wang, Wei; Li, Chengjian; Weng, Zhiping; Zamore, Phillip D.

    2015-01-01

    PIWI-interacting RNAs (piRNAs) protect the animal germline by silencing transposons. Primary piRNAs, generated from transcripts of genomic transposon ‘junkyards’ (piRNA clusters), are amplified by the “Ping-Pong” pathway, yielding secondary piRNAs. We report that secondary piRNAs, bound to the PIWI protein Ago3, can initiate primary piRNA production from cleaved transposon RNAs. The first ~26 nt of each cleaved RNA becomes a secondary piRNA, but the subsequent ~26 nt becomes the first in a series of phased primary piRNAs that bind Piwi, allowing piRNAs to spread beyond the site of RNA cleavage. The Ping-Pong pathway increases only the abundance of piRNAs, whereas production of phased primary piRNAs from cleaved transposon RNAs adds sequence diversity to the piRNA pool, allowing adaptation to changes in transposon sequence. PMID:25977554

  20. Observation of the radiative decay J/psi. -->. gamma. eta. pi pi

    SciTech Connect

    Newman-Holmes, C.

    1982-09-01

    The radiative decay J/psi ..-->.. ..gamma.. eta ..pi pi.. has been observed in data taken with the Crystal Ball detector at the SPEAR e/sup +/e/sup -/ storage ring. In addition to the well-known eta', the eta ..pi pi.. mass spectrum shows a broad enhancement centered at approx. 1700 MeV. There is no explicit evidence for the l(1440) in the eta ..pi pi.. mass spectrum.

  1. Measurement of the Branching Fraction and Decay Rate Asymmetry of B to D_pi+ pi- pi0 K-

    SciTech Connect

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, A.; Pappagallo, M.; Pompili, A.; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /Pisa U. /INFN, Pisa /Prairie View A-M /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Oregon U. /SLAC /SLAC /Stanford U., Phys. Dept. /SUNY, Stony Brook /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Vanderbilt U. /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U.

    2005-06-10

    The authors report the observation of the decay B{sup -} {yields} D{sub {pi}{sup +}{pi}{sup -}{pi}{sup 0}}K{sup -}, where D{sub {pi}{sup +}{pi}{sup -}{pi}{sup 0}} indicates a neutral D meson detected in the final state {pi}{sup +}{pi}{sup -}{pi}{sup 0}, excluding K{sub S}{sup 0}{pi}{sup 0}. This doubly Cabibbo-suppressed decay chain can be used to measure the CKM phase {gamma}. Using about 229 million e{sup +}e{sup -} {yields} B{bar B} events recorded by the BABAR experiment at the PEP-II e{sup +}e{sup -} storage ring, they measure the branching fraction {Beta}(B{sup -} {yields} D{sub {pi}{sup +}{pi}{sup -}{pi}{sup 0}K{sup -}}) = (5.5 {+-} 1.0 (stat.) {+-} 0.7 (syst.)) x 10{sup -6} and the decay rate asymmetry A = -0.02 {+-} 0.16 (stat.) {+-} 0.03 (syst.) for the full decay chain.

  2. An Algebraic Route to Pi

    ERIC Educational Resources Information Center

    Deakin, Michael A. B.

    1974-01-01

    Euler's famous formula, e to the (i, pi) power equals -1, is developed by a purely algebraic method that avoids the use of both trigonometry and calculus. A heuristic outline is given followed by the rigorous theory. Pedagogical considerations for classroom presentation are suggested. (LS)

  3. Unitary {pi}NN model

    SciTech Connect

    Lee, T.S.H.; Jong, F. de; Liu, G.Q.; Thomas, A.W.

    1995-08-01

    An important feature of nuclear reactions at energies accessible to the new facilities at CEBAF and RHIC is pion production. It is important to determine the extent to which these reactions can be described in terms of color-singlet hadronic degrees of freedom. Without such a baseline, any attempt to explore QCD dynamics from such complex processes will be difficult. We are improving our earlier work on the {pi}NN model with the {pi} and {Delta} degrees of freedom to address this question. Our current focus is to improve the model by taking into account three recent developments: (1) the nonresonant pion production mechanisms were identified in the study of threshold pion production in proton-proton collisions, (2) the short-range NN and N{Delta} interactions can be calculated from the chiral quark model, and (3) the NN phase shifts analysis was improved and extended to 1.6 GeV. We obtained the first results showing that, by including the nonresonant pion production mechanisms of Lee and Riska, the long-standing problem concerning the NN inelasticities near threshold can be resolved. We are carrying out extensive numerical calculations to quantify the improved {pi}NN model. The resulting model will be used to improve our many investigations of nuclear dynamics involving {pi} and {Delta} degrees of freedom, as described in the following subsections.

  4. Partial-wave analysis of {pi}{sup -}{pi}{sup 0}{pi}{sup 0} events at 18 GeV/c

    SciTech Connect

    Brown, D. S.

    1998-05-29

    A partial-wave analysis has been performed on 170 K {pi}{sup -}{pi}{sup 0}{pi}{sup 0} events produced in the reaction {pi}{sup -}p{yields}p{pi}{sup -}{pi}{sup 0}{pi}{sup 0}, and the results of the mass-independent fits are presented. The objective was to confirm the existence of the {pi}(1800) and the exotic J{sup PC}=1{sup -+} object, reported by VES.

  5. FFTF Authorization Agreement

    SciTech Connect

    DAUTEL, W.A.

    2000-09-25

    The purpose of the Authorization Agreement is to serve as a mechanism whereby the U.S. Department of Energy, Richland Operations Office (RL) and Fluor Hanford (FH) jointly clarify and agree to key conditions for conducting work safely and efficiently in the Fast Flux Test Facility (FFTF). Work must be accomplished in a manner that achieves high levels of quality while protecting the environment and the safety and health of workers and the public, and complying with applicable contractual and regulatory requirements. It is the intent of this Agreement to address those items of significant importance in establishing and supporting the FFTF Authorization Envelope, but this Agreement in no way alters the terms and conditions of the Project Hanford Management Contract (PHMC), Contract Number DE-AC06-96RL13200.

  6. Indications for the decays D/sub s//sup +-/. -->. eta. pi. /sup +-/ and D/sub s//sup +-/. -->. eta'. pi. /sup +-/

    SciTech Connect

    Wormser, G.

    1987-11-01

    A search for D/sub s//sup +-/ decays into eta ..pi../sup +-/ and eta' ..pi../sup +-/ has been performed by the MarkII collaboration at the PEP e/sup +/e/sup -/ storage ring. Eta particles are reconstructed by their ..gamma gamma.. decay mode. The eta fragmentation has been measured and found to be in good agreement with the Lund model prediction. Eta' production has been measured for the first time in e/sup +/e/sup -/ high energy annihilation. Good indications are found for both decay modes D/sub s//sup +-/ ..-->.. eta ..pi../sup +-/ and D/sub s//sup +-/ ..-->.. eta' ..pi../sup +-/.

  7. Scalar mesons in the decays {eta}' {sup {yields}}3{pi}{sup 0} and {eta}' {sup {yields} {pi}0{pi}+{pi}-}

    SciTech Connect

    Likhoded, A. K. Luchinsky, A. V. Samoylenko, V. D.

    2010-10-15

    The decays {eta} {sup {yields}}3{pi}{sup 0} and {eta} {sup {yields} {pi}0{pi}+{pi}-} are considered within the isobar model. It is shown that, in order to explain the branching ratio and the shape of the Dalitz plot for the decay {eta}' {sup {yields}}3{pi}{sup 0}, it is sufficient to take into account the contributions of the {sigma} and a{sub 0} mesons. The inclusion of the {sigma} meson is necessary for reproducing the shape of the distribution over the Dalitz plot. The branching ratio for the decay {eta}' {sup {yields} {pi}0{pi}+{pi}-} is obtained. The predictions for the distributions over the Dalitz plot for this decay are presented. These predictions depend strongly on model parameters.

  8. Measurement of Branching Fractions and Mass Spectra of B to K pi pi gamma

    SciTech Connect

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, A.; Pappagallo, M.; Pompili, A.; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /Pisa U. /Pisa, Scuola Normale Superiore /INFN, Pisa /Prairie View A-M /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Vanderbilt U. /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U.

    2005-07-12

    The authors present a measurement of the partial branching fractions and mass spectra of the exclusive radiative penguin processes B {yields} K{pi}{pi}{gamma} in the range m{sub K{pi}{pi}} < 1.8 GeV/c{sup 2}. They reconstruct four final states: K{sup +}{pi}{sup -}{pi}{sup +}{gamma}, K{sup +}{pi}{sup -}{pi}{sup 0}{gamma}, K{sub S}{sup 0}{pi}{sup -}{pi}{sup +}{gamma}, and K{sub S}{sup 0}{pi}{sup +}{pi}{sup 0}{gamma}, where K{sub S}{sup 0} {yields} {pi}{sup +}{pi}{sup -}. Using 232 million e{sup +}e{sup -} {yields} B{bar B} events recorded by the BABAR experiment at the PEP-II asymmetric-energy storage ring, they measure the branching fractions {Beta}(B{sup +} {yields} K{sup +}{pi}{sup -}{pi}{sup +}{gamma}) = (2.95 {+-} 0.13(stat.) {+-} 0.20(syst)) x 10{sup -5}, {Beta}(B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0}{gamma}) = (4.07 {+-} 0.22(stat.) {+-} 0.31(syst.)) x 10{sup -5}, {Beta}(B{sup 0} {yields} K{sup 0}{pi}{sup +}{pi}{sup -}{gamma}) = (1.85 {+-} 0.21(stat.) {+-} 0.12(syst.)) x 10{sup -5}, and {Beta}(B{sup +} {yields} K{sup 0}{pi}{sup +}{pi}{sup 0}{gamma}) = (4.56 {+-} 0.42(stat.) {+-} 0.31(syst.)) x 10{sup -5}.

  9. Agreement to market white rot fungi technology

    SciTech Connect

    Not Available

    1988-11-01

    Remediation Technologies, Inc. (ReTeC) has signed a licensing agreement with Utah State University (USU) for the joint commercialization of application of white rot fungi to bioremediate sludges and contaminated soils. The initial effort will focus on the use of composting technology for bioremediation of soils contaminated with coal tar residuals resulting from wood preserving operations and former gas manufacturing sites.

  10. The {rho} {sup {yields} {gamma}{pi}} and {omega} {sup {yields} {gamma}{pi}} decays in quark-model approach and estimation of coupling for pion emission by quark

    SciTech Connect

    Anisovich, A. V.; Anisovich, V. V.; Dakhno, L. G.; Matveev, M. A.; Nikonov, V. A.; Sarantsev, A. V.

    2010-03-15

    In the framework of the relativistic and gauge-invariant spectral integral technique, we calculate radiative decays {rho}(770) {sup {yields} {gamma}{pi}}(140) and {omega}(780) {sup {yields} {gamma}{pi}}(140) supposing all mesons ({pi}, {rho}, and {omega}) to be quark-antiquark states. The qq-bar wave functions found for mesons and photon lead to a reasonably good description of data ( {Gamma} (exp){rho} {+-} to {gamma} {pi} 68 {+-} 30 keV, {Gamma} (exp) {rho} 0 to {gamma} {pi} 0 = 77 {+-} 28 keV, {Gamma} (exp) {omega} to {gamma} {pi} 0 = 776 {+-} 45 keV) which makes it possible to estimate the coupling for the bremsstrahlung emission of pion by quarks g{sub {pi} {identical_to}} g{sub {pi}}(u {sup {yields}}d{pi}). We have found two values for the pion bremsstrahlung coupling: vertical bar g{sub {pi}}vertical bar = 16.7 {+-} 0.3{sub -2.3}{sup +0.1} (Solution I) and vertical bar g{sub {pi}}vertical bar = 3.0 {+-} 0.3{sub -2.1}{sup +0.1} (Solution II). Within SU(6) symmetry for nucleons, Solution I gives us for {pi}NN coupling the value 16.4 {<=} g{sub {pi}NN}{sup 2}(4{pi}) {<=} 23.2, which is in qualitative agreement with the {pi}N scattering data, g{sub {pi}NN}{sup 2}/(4{pi}) {r_brace}{approx} 14. For excited states, we have estimated the partial widths in Solution I as follows: {Gamma}({rho}{sub 2S}{sup {+-} {yields} {gamma}{pi}}) {r_brace}{approx} 10-130 keV, {Gamma}({rho}{sub 2S}{sup 0} {sup {yields} {gamma}{pi}}) {r_brace}{approx} 10-130 keV, {Gamma}({omega}{sub 2S} {sup {yields} {gamma}{pi}}) {r_brace}{approx} 60-1080 keV. The large uncertainties emphasize the necessity to carry out measurements of the meson radiative processes in the region of large masses.

  11. Study of the tau- ---> pi- pi- pi+ pi0 pi0 nu/tau and tau- --> 3h- 2h+ nu/tau Decays Using the BaBar Detector

    SciTech Connect

    Sobie, R.; /Victoria U.

    2005-06-21

    The {tau}{sup -} {yields} {pi}{sup -}{pi}{sup -}{pi}{sup +}{pi}{sup 0}{pi}{sup 0}{nu}{sub {tau}} and {tau}{sup -} {yields} 3h{sup -} 2h{sup +} {nu}{sub {tau}} decays have been studied using the BABAR experiment at the PEP-II e{sup +}e{sup -} storage ring. Preliminary branching fractions are given for the {tau}{sup -} {yields} {pi}{sup -}{pi}{sup -}{pi}{sup +}{pi}{sup 0}{pi}{sup 0}{nu}{sub {tau}} and to the sub-channels {tau}{sup -} {yields} {eta}{pi}{sup -} {pi}{sup 0}{nu}{sub {tau}} and {tau}{sup -} {yields} {omega}(782){pi}{sup -}{pi}{sup 0}{nu}{sub {tau}}. A preliminary upper limit is given on the branching fraction for the {phi}(1020){pi}{sup -}{pi}{sup 0}{nu}{sub {tau}} mode. In addition a preliminary measurement of the branching fraction of the {tau}{sup -} {yields} 3h{sup -}2h{sup +} {nu}{sub {tau}} decay (h = {pi}, K) is presented.

  12. 4Pi-RESOLFT nanoscopy

    PubMed Central

    Böhm, Ulrike; Hell, Stefan W.; Schmidt, Roman

    2016-01-01

    By enlarging the aperture along the optic axis, the coherent utilization of opposing objective lenses (4Pi arrangement) has the potential to offer the sharpest and most light-efficient point-spread-functions in three-dimensional (3D) far-field fluorescence nanoscopy. However, to obtain unambiguous images, the signal has to be discriminated against contributions from lobes above and below the focal plane, which has tentatively limited 4Pi arrangements to imaging samples with controllable optical conditions. Here we apply the 4Pi scheme to RESOLFT nanoscopy using two-photon absorption for the on-switching of fluorescent proteins. We show that in this combination, the lobes are so low that low-light level, 3D nanoscale imaging of living cells becomes possible. Our method thus offers robust access to densely packed, axially extended cellular regions that have been notoriously difficult to super-resolve. Our approach also entails a fluorescence read-out scheme that translates molecular sensitivity to local off-switching rates into improved signal-to-noise ratio and resolution. PMID:26833381

  13. 4Pi-RESOLFT nanoscopy.

    PubMed

    Böhm, Ulrike; Hell, Stefan W; Schmidt, Roman

    2016-01-01

    By enlarging the aperture along the optic axis, the coherent utilization of opposing objective lenses (4Pi arrangement) has the potential to offer the sharpest and most light-efficient point-spread-functions in three-dimensional (3D) far-field fluorescence nanoscopy. However, to obtain unambiguous images, the signal has to be discriminated against contributions from lobes above and below the focal plane, which has tentatively limited 4Pi arrangements to imaging samples with controllable optical conditions. Here we apply the 4Pi scheme to RESOLFT nanoscopy using two-photon absorption for the on-switching of fluorescent proteins. We show that in this combination, the lobes are so low that low-light level, 3D nanoscale imaging of living cells becomes possible. Our method thus offers robust access to densely packed, axially extended cellular regions that have been notoriously difficult to super-resolve. Our approach also entails a fluorescence read-out scheme that translates molecular sensitivity to local off-switching rates into improved signal-to-noise ratio and resolution. PMID:26833381

  14. 4Pi-RESOLFT nanoscopy

    NASA Astrophysics Data System (ADS)

    Böhm, Ulrike; Hell, Stefan W.; Schmidt, Roman

    2016-02-01

    By enlarging the aperture along the optic axis, the coherent utilization of opposing objective lenses (4Pi arrangement) has the potential to offer the sharpest and most light-efficient point-spread-functions in three-dimensional (3D) far-field fluorescence nanoscopy. However, to obtain unambiguous images, the signal has to be discriminated against contributions from lobes above and below the focal plane, which has tentatively limited 4Pi arrangements to imaging samples with controllable optical conditions. Here we apply the 4Pi scheme to RESOLFT nanoscopy using two-photon absorption for the on-switching of fluorescent proteins. We show that in this combination, the lobes are so low that low-light level, 3D nanoscale imaging of living cells becomes possible. Our method thus offers robust access to densely packed, axially extended cellular regions that have been notoriously difficult to super-resolve. Our approach also entails a fluorescence read-out scheme that translates molecular sensitivity to local off-switching rates into improved signal-to-noise ratio and resolution.

  15. Dispersion relations with crossing symmetry for {pi}{pi} D- and F-wave amplitudes

    SciTech Connect

    Kaminski, R.

    2011-04-01

    A set of once subtracted dispersion relations with imposed crossing symmetry condition for the {pi}{pi} D- and F-wave amplitudes is derived and analyzed. An example of numerical calculations in the effective two-pion mass range from the threshold to 1.1 GeV is presented. It is shown that these new dispersion relations impose quite strong constraints on the analyzed {pi}{pi} interactions and are very useful tools to test the {pi}{pi} amplitudes. One of the goals of this work is to provide a complete set of equations required for easy use. Full analytical expressions are presented. Along with the well-known dispersion relations successful in testing the {pi}{pi} S- and P-wave amplitudes, those presented here for the D and F waves give a complete set of tools for analyses of the {pi}{pi} interactions.

  16. Study of J/psi pi+ pi- States Produced in B0 to J/psi pi+ pi- K^0 and B- to J/psi pi+ pi- K-

    SciTech Connect

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, A.; Pappagallo, M.; Pompili, A.; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /Pisa U. /INFN, Pisa /Prairie View A-M /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Stony Brook /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Vanderbilt U. /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U.

    2005-07-27

    We present results of a search for the X(3872) in B{sup 0} {yields} X(3872)K{sub S}{sup 0}, X(3872) {yields} J/{psi}{pi}{sup +}{pi}{sup -}, improved measurements of B{sup -} {yields} X(3872)K{sup -}, and a study of the J/{psi}{pi}{sup +}{pi}{sup -} mass region above the X(3872). We use 232 million B{bar B} pairs collected at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II e{sup +}e{sup -} asymmetric-energy storage rings. The results include the 90% confidence interval 1.34 x 10{sup -6} < {Beta}(B{sup 0} {yields} X(3872)K{sup 0}, X {yields} J/{psi}{pi}{sup +}{pi}{sup -}) < 10.3 x 10{sup -6} and the branching fraction {Beta}(B{sup -} {yields} X(3872)K{sup -}, X {yields} J/{psi}{pi}{sup +}{pi}{sup -}) = (10.1 {+-} 2.5 {+-} 1.0) x 10{sup -6}. We observe a (2.7 {+-} 1.3 {+-} 0.2) MeV/c{sup 2} mass difference of the X(3872) produced in the two decay modes. Furthermore, we find an excess of J/{psi}{pi}{sup +}{pi}{sup -} events with an invariant mass just above 4.2 GeV/c{sup 2} that is consistent with recent observations in initial state radiation events.

  17. Agreements in Virtual Organizations

    NASA Astrophysics Data System (ADS)

    Pankowska, Malgorzata

    This chapter is an attempt to explain the important impact that contract theory delivers with respect to the concept of virtual organization. The author believes that not enough research has been conducted in order to transfer theoretical foundations for networking to the phenomena of virtual organizations and open autonomic computing environment to ensure the controllability and management of them. The main research problem of this chapter is to explain the significance of agreements for virtual organizations governance. The first part of this chapter comprises explanations of differences among virtual machines and virtual organizations for further descriptions of the significance of the first ones to the development of the second. Next, the virtual organization development tendencies are presented and problems of IT governance in highly distributed organizational environment are discussed. The last part of this chapter covers analysis of contracts and agreements management for governance in open computing environments.

  18. Countries renew rescue agreement

    NASA Astrophysics Data System (ADS)

    Bush, Susan M.

    To insure long-term continuity for the international satellite search and rescue system, COSPAS/SARSAT, an intergovernmental agreement binding the four sponsoring nations to cooperate was signed July 1 in Paris. According to Russell Vollmers of the National Oceanic and Atmospheric Administration, the agreement is binding for 15 years, with an automatic extension.The system marked the fifth anniversary of its first rescue last year, when on September 10, 1982, three persons were rescued. Begun in the 1970s by NASA as an experiment, COSPAS/SARSAT (a Russian-English acronym) is now a cooperative project among the United States, Canada, France, and the Soviet Union. Its goal is to reduce the time required to rescue air and maritime distress victims and also to locate victims who otherwise may not be found, thus using the satellite system as a life-saving device.

  19. piRBase: a web resource assisting piRNA functional study.

    PubMed

    Zhang, Peng; Si, Xiaohui; Skogerbø, Geir; Wang, Jiajia; Cui, Dongya; Li, Yongxing; Sun, Xubin; Liu, Li; Sun, Baofa; Chen, Runsheng; He, Shunmin; Huang, Da-Wei

    2014-01-01

    piRNAs are a class of small RNAs that is most abundantly expressed in the animal germ line. Presently, substantial research is going on to reveal the functions of piRNAs in the epigenetic and post-transcriptional regulation of transposons and genes. A piRNA database for collection, annotation and structuring of these data will be a valuable contribution to the field, and we have therefore developed the piRBase platform which integrates various piRNA-related high-throughput data. piRBase has the largest collection of piRNAs among existing databases, and contains at present 77 million piRNA sequences from nine organisms. Repeat-derived and gene-derived piRNAs, which possibly participate in the regulation of the corresponding elements, have been given particular attention. Furthermore, epigenetic data and reported piRNA targets were also collected. To our knowledge, this is the first piRNA database that systematically integrates epigenetic and post-transcriptional regulation data to support piRNA functional analysis. We believe that piRBase will contribute to a better understanding of the piRNA functions. Database URL: http://www.regulatoryrna.org/database/piRNA/

  20. Overview of USEPA/NERL Cooperative Agreement Research Program on Air Pollution Exposure and Health

    EPA Science Inventory

    USEPA's National Exposure Research Laboratory (NERL) recently initiated a two-year Cooperative Agreement Research Program between EPA and three academic institutions: Emory University, Rutgers University and University of Washington. Under this EPA/NERL sponsored research, nov...

  1. Measurements of Charged Current Lepton Universality and |V{sub us}| Using Tau Lepton Decays to e{sup -{nu}}{sub e{nu}{tau}}, {mu}{sup -{nu}}{sub {mu}{nu}{tau}}, {pi}{sup -{nu}}{sub {tau},} and K{sup -{nu}}{sub {tau}}

    SciTech Connect

    Aubert, B.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Martinelli, M.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Battaglia, M.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.

    2010-07-30

    Using 467 fb{sup -1} of e{sup +}e{sup -} annihilation data collected with the BABAR detector, we measure (B({tau}{sup -{yields}}{mu}-{nu}{sub {mu}{nu}{tau}}))/B({tau}{sup -{yields}}e{sup -{nu}}{sub e{nu}{tau}})=(0.9796{+-}0.0016{+-}0.0036), (B({tau}{sup -{yields}}{pi}-{nu}{sub {tau}})/B({tau}{sup -{yields}}e{sup -{nu}}{sub e{nu}{tau}}))=(0.5945{+-}0.0014{+-}0.0061), and (B({tau}{sup -{yields}}K{sup -{nu}}{sub {tau}})/B({tau}{sup -{yields}}e{sup -{nu}}{sub e{nu}{tau}}))=(0.03882{+-}0.00032{+-}0.00057), where the uncertainties are statistical and systematic, respectively. From these precision {tau} measurements, we test the standard model assumption of {mu}-e and {tau}-{mu} charge current lepton universality and provide determinations of |V{sub us}| experimentally independent of the decay of a kaon.

  2. First observation and measurement of the resonant structure of the lambda_b->lambda_c pi-pi+pi- decay mode

    SciTech Connect

    Azzurri, P.; Barria, P.; Ciocci, M.A.; Donati, S.; Vataga, E.

    2009-12-01

    The authors present the first observation of the {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} decay using data from an integrated luminosity of approximately 2.4 fb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV, collected with the CDF II detector at the Fermilab Tevatron. They also present the first observation of the resonant decays {Lambda}{sub b}{sup 0} {yields} {Sigma}{sub c}(2455){sup 0} {pi}{sup +}{pi}{sup -} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -}, {Lambda}{sub b}{sup 0} {yields} {Sigma}{sub c}(2455){sup ++}{pi}{sup -}{pi}{sup -} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -}, {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}(2595){sup +}{pi}{sup -} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} and {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}(2625){sup +}{pi}{sup -} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -}, and measure their relative branching ratios.

  3. Faculty Collective Bargaining in the California State University. A Staff Report on the 1983-1986 Agreement between the Board of Trustees and the California Faculty Association for Unit 3--Faculty. Commission Report 84-3.

    ERIC Educational Resources Information Center

    California State Postsecondary Education Commission, Sacramento.

    Features of a 1983-1986 faculty collective bargaining contract at the California State University (CSU) are described. The Congress of Faculty Associations won representation rights for the faculty bargaining unit at CSU in a 1983 election. Attention is directed to: grievance procedures; appointment, probation, tenure, and promotions; layoff;…

  4. Structure of the K{sup {pi}} = 4{sup +} bands in {sup 186,188}Os

    SciTech Connect

    Phillips, A. A.; Garrett, P. E.; Demand, G. A.; Finlay, P.; Green, K. L.; Leach, K. G.; Schumaker, M. A.; Svensson, C. E.; Wong, J.; Bettermann, L.; Braun, N.; Burke, D. G.; Faestermann, T.; Kruecken, R.; Wirth, H.-F.; Hertenberger, R.

    2009-01-28

    The structures of {sub 3}{sup +} states in Os have been debated over several decades. Based on measured B(E2) values they were interpreted in {sup 186-192}Os as K{sup {pi}} = 4{sup +} two-phonon vibrations, whereas inelastic scattering, and (t,{alpha}) work imply a hexadecapole phonon description. To clarify the nature of these K{sup {pi}} = 4{sup +} bands in {sup 186,188}Os, we performed a ({sup 3}He,d) reaction on {sup 185,187}Re targets using 30 MeV {sup 3}He beams and a Q3D spectrograph. Absolute cross sections were obtained for excited states up to 3 MeV at 9 angles from 5 deg. to 50 deg. Results indicate a significant (5/2){sup +}[402]{sub {pi}}+(3/2){sup +}[402]{sub {pi}} component in agreement with quasiparticle phonon model predictions for a single hexadecapole phonon structure.

  5. Tagged-weak {pi} method

    SciTech Connect

    Margaryan, A.; Hashimoto, O.; Kakoyan, V.; Knyazyan, S.; Tang, L.

    2011-02-15

    A new 'tagged-weak {pi} method' is proposed for determination of electromagnetic transition probabilities B(E2) and B(M1) of the hypernuclear states with lifetimes of {approx}10{sup -10} s. With this method, we are planning to measure B(E2) and B(M1) for light hypernuclei at JLab. The results of Monte Carlo simulations for the case of E2(5/2{sup +}, 3/2{sup +} {yields} 1/2{sup +}) transitions in {sub {Lambda}}{sup 7}He hypernuclei are presented.

  6. Observation of the narrow state x (3872) --> j/psi pi+ pi- in pbar p collisions at s**(1/2) = 1.96 tev

    SciTech Connect

    Acosta, D.; CDF Collaboration

    2004-02-27

    The authors report the observation of a narrow state decaying into J/{psi}{pi}{sup +}{pi}{sup -} and produced in 220 pb{sup -1} of {bar p}p collisions at {radical}s = 1.96 TeV in the CDF II experiment. They observe 730 {+-} 90 decays. The mass is measured to be 3871.3 {+-} 0.7(stat) {+-} 0.4(syst) MeV/c{sup 2}, with an observed width consistent with the detector resolution. This is in agreement with the recent observation by the Belle Collaboration of the X(3872) meson.

  7. Measurement of CP--violating asymmetries in $D^0\\to\\pi^+\\pi^-$ and $D^0\\to K^+K^-$ decays at CDF

    SciTech Connect

    Aaltonen, T.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J.A.; Arisawa, T.; Artikov, A.; /Dubna, JINR /Texas A-M

    2011-11-01

    We report on a measurement of CP-violating asymmetries (A{sub CP}) in the Cabibbo-suppressed D{sup 0} {yields} {pi}{sup +}{pi}{sup -} and D{sup 0} {yields} K{sup +}K{sup -} decays reconstructed in a data sample corresponding to 5.9 fb{sup -1} of integrated luminosity collected by the upgraded Collider Detector at Fermilab. We use the strong decay D*{sup +} {yields} D{sup 0}{pi}{sup +} to identify the flavor of the charmed meson at production and exploit CP-conserving strong c{bar c} pair-production in p{bar p} collisions. High-statistics samples of Cabibbo-favored D{sup 0} {yields} K{sup -}{pi}{sup +} decays with and without a D*{sup {+-}} tag are used to correct for instrumental effects and significantly reduce systematic uncertainties. We measure A{sub CP}(D{sup 0} {yields} {pi}{sup +}{pi}{sup -}) = (+0.22 {+-} 0.24(stat) {+-} 0.11 (syst))% and A{sub CP}(D{sup 0} {yields} K{sup +}K{sup -}) = (-0.24 {+-} 0.22 (stat) {+-} 0.09 (syst))%, in agreement with CP conservation. These are the most precise determinations from a single experiment to date. Under the assumption of negligible direct CP violation in D{sup 0} {yields} {pi}{sup +}{pi}{sup -} and D{sup 0} {yields} K{sup +}K{sup -} decays, the results provide an upper limit to the CP-violating asymmetry in D{sup 0} mixing, |A{sub CP}{sup ind}(D{sup 0})| < 0.13% at the 90% confidence level.

  8. Standardized Reporting of Prostate MRI: Comparison of the Prostate Imaging Reporting and Data System (PI-RADS) Version 1 and Version 2

    PubMed Central

    Tewes, Susanne; Mokov, Nikolaj; Hartung, Dagmar; Schick, Volker; Peters, Inga; Schedl, Peter; Pertschy, Stefanie; Wacker, Frank; Voshage, Götz; Hueper, Katja

    2016-01-01

    Introduction Objective of our study was to determine the agreement between version 1 (v1) and v2 of the Prostate Imaging Reporting and Data System (PI-RADS) for evaluation of multiparametric prostate MRI (mpMRI) and to compare their diagnostic accuracy, their inter-observer agreement and practicability. Material and Methods mpMRI including T2-weighted imaging, diffusion-weighted imaging (DWI) and dynamic contrast-enhanced imaging (DCE) of 54 consecutive patients, who subsequently underwent MRI-guided in-bore biopsy were re-analyzed according to PI-RADS v1 and v2 by two independent readers. Diagnostic accuracy for detection of prostate cancer (PCa) was assessed using ROC-curve analysis. Agreement between PI-RADS versions and observers was calculated and the time needed for scoring was determined. Results MRI-guided biopsy revealed PCa in 31 patients. Diagnostic accuracy for detection of PCa was equivalent with both PI-RADS versions for reader 1 with sensitivities and specificities of 84%/91% (AUC = 0.91 95%CI[0.8–1]) for PI-RADS v1 and 100%/74% (AUC = 0.92 95% CI[0.8–1]) for PI-RADS v2. Reader 2 achieved similar diagnostic accuracy with sensitivity and specificity of 74%/91% (AUC = 0.88 95%CI[0.8–1]) for PI-RADS v1 and 81%/91% (AUC = 0.91 95%CI[0.8–1]) for PI-RADS v2. Agreement between scores determined with different PI-RADS versions was good (reader 1: κ = 0.62, reader 2: κ = 0.64). Inter-observer agreement was moderate with PI-RADS v2 (κ = 0.56) and fair with v1 (κ = 0.39). The time required for building the PI-RADS score was significantly lower with PI-RADS v2 compared to v1 (24.7±2.3 s vs. 41.9±2.6 s, p<0.001). Conclusion Agreement between PI-RADS versions was high and both versions revealed high diagnostic accuracy for detection of PCa. Due to better inter-observer agreement for malignant lesions and less time demand, the new PI-RADS version could be more practicable for clinical routine. PMID:27657729

  9. Measurement of the Branching Ratio Lambda_c+ -> p pi+ pi-

    SciTech Connect

    Lopez-Hinojosa, Guillermo; /San Luis Potosi U.

    2008-03-01

    The confirmation of the Cabibbo-suppressed charm baryon decay mode {Lambda}{sub c}{sup +} {yields} p{pi}{sup +}{pi}{sup -} is reported. All data analyzed are from SELEX, a fixed target experiment at Fermilab that took data during 1996 and 1997, mainly with a 600 GeV/c {Sigma}{sup -} beam. The branching ratio of the Cabibbo-suppressed decay mode {Lambda}{sub c}{sup +} {yields} p{pi}{sup +}{pi}{sup -} relative to the Cabibbo-favored mode {Lambda}{sub c}{sup +} {yields} pK{sup -}{pi}{sup +} is measured to be: {Gamma}({Lambda}{sub c}{sup +} {yields} p{pi}{sup +}{pi}{sup -})/{Gamma}({Lambda}{sub c}{sup +} {yields} pK{sup -}{pi}{sup +}) = 0.103 {+-} 0.022.

  10. The Search for Exotic Mesons in gamma p -> pi+pi+pi-n with CLAS at Jefferson Lab

    SciTech Connect

    Craig Bookwalter

    2011-12-01

    The {pi}{sub 1}(1600), a J{sup PC} = 1{sup {-+}} exotic meson has been observed by experiments using pion beams. Theorists predict that photon beams could produce gluonic hybrid mesons, of which the {pi}{sub 1}(1600) is a candidate, at enhanced levels relative to pion beams. The g12 rungroup at Jefferson Lab's CEBAF Large Acceptance Spectrometer (CLAS) has recently acquired a large photoproduction dataset, using a liquid hydrogen target and tagged photons from a 5.71 GeV electron beam. A partial-wave analysis of 502K {gamma}p {yields} {pi}{sup +}{pi}{sup +}{pi}{sup -}n events selected from the g12 dataset has been performed, and preliminary fit results show strong evidence for well-known states such as the a{sub 1}(1260), a{sub 2}(1320), and {pi}{sub 2}(1670). However, we observe no evidence for the production of the {pi}{sub 1}(1600) in either the partial-wave intensities or the relative complex phase between the 1{sup {-+}} and the 2{sup {-+}} (corresponding to the {pi}{sub 2}) partial waves.

  11. Electroweak Penguins, Final State Interaction Phases, and {ital CP} Violation in B {r_arrow} K {pi} Decays

    SciTech Connect

    Deshpande, N.G.; He, X.; Hou, W.; He, X.; Hou, W.; Pakvasa, S.

    1999-03-01

    The recently observed B{sup {minus}} {r_arrow} K{sup {minus}} {pi} {sup 0}, {bar K}{sup 0} {pi} {sup {minus}} and {bar B} {sup 0} {r_arrow} K{sup {minus}} {pi} {sup +} decay modes appear to have nearly equal branching ratios. This suggests that tree and electroweak penguins play an important role, and inclusion of the latter improves agreement between factorization calculation and experimental data. The value of {gamma} in the range of 90{degree} {endash} 130{degree} and 220{degree} {endash} 260{degree} is favored, while the {bar B} {sup 0} {r_arrow} {bar K} {sup 0} {pi} {sup 0} rate is suppressed. Direct CP violation for B{r_arrow} K{pi} modes can be large if final state interaction phases are large. {copyright} {ital 1999} {ital The American Physical Society}

  12. Rare decay {eta}{r_arrow}{pi}{pi}{gamma}{gamma} in chiral perturbation theory

    SciTech Connect

    Knoechlein, G.; Scherer, S.; Drechsel, D.

    1996-04-01

    We investigate the rare radiative {eta} decay modes {eta}{r_arrow}{pi}{sup +}{pi}{sup {minus}}{gamma}{gamma} and {eta}{r_arrow}{pi}{sup 0}{pi}{sup 0}{gamma}{gamma} within the framework of chiral perturbation theory at {ital O}({ital p}{sup 4}). We present photon spectra and partial decay rates for both processes as well as a Dalitz contour plot for the charged decay. {copyright} {ital 1996 The American Physical Society.}

  13. B {sup {yields}} {pi}{pi} decays: Branching ratios and CP asymmetries

    SciTech Connect

    Kaidalov, A. B. Vysotsky, M. I.

    2007-04-15

    Theoretically motivated smallness of the penguin amplitude in B {sup {yields}} {pi}{pi} decays allows one to calculate the value of the unitarity-triangle angle {alpha}(o{sub 2}) with good accuracy. The relatively large branching ratio of the decay into {pi}{sup 0}{pi}{sup 0} is explained by the large value of FSI phase difference between decay amplitudes with I = 0 and I = 2.

  14. Partial-wave analysis of {pi}{sup {minus}}{pi}{sup 0}{pi}{sup 0} events at 18 GeV/c

    SciTech Connect

    Brown, D.S.

    1998-05-01

    A partial-wave analysis has been performed on 170 K {pi}{sup {minus}}{pi}{sup 0}{pi}{sup 0} events produced in the reaction {pi}{sup {minus}}p{r_arrow}p{pi}{sup {minus}}{pi}{sup 0}{pi}{sup 0}, and the results of the mass-independent fits are presented. The objective was to confirm the existence of the {pi}(1800) and the exotic J{sup PC}=1{sup {minus}+} object, reported by VES. {copyright} {ital 1998 American Institute of Physics.}

  15. Assessment of pharmacogenomic agreement.

    PubMed

    Safikhani, Zhaleh; El-Hachem, Nehme; Quevedo, Rene; Smirnov, Petr; Goldenberg, Anna; Juul Birkbak, Nicolai; Mason, Christopher; Hatzis, Christos; Shi, Leming; Aerts, Hugo Jwl; Quackenbush, John; Haibe-Kains, Benjamin

    2016-01-01

    In 2013 we published an analysis demonstrating that drug response data and gene-drug associations reported in two independent large-scale pharmacogenomic screens, Genomics of Drug Sensitivity in Cancer (GDSC) and Cancer Cell Line Encyclopedia (CCLE), were inconsistent. The GDSC and CCLE investigators recently reported that their respective studies exhibit reasonable agreement and yield similar molecular predictors of drug response, seemingly contradicting our previous findings. Reanalyzing the authors' published methods and results, we found that their analysis failed to account for variability in the genomic data and more importantly compared different drug sensitivity measures from each study, which substantially deviate from our more stringent consistency assessment. Our comparison of the most updated genomic and pharmacological data from the GDSC and CCLE confirms our published findings that the measures of drug response reported by these two groups are not consistent. We believe that a principled approach to assess the reproducibility of drug sensitivity predictors is necessary before envisioning their translation into clinical settings. PMID:27408686

  16. Assessment of pharmacogenomic agreement

    PubMed Central

    Safikhani, Zhaleh; El-Hachem, Nehme; Quevedo, Rene; Smirnov, Petr; Goldenberg, Anna; Juul Birkbak, Nicolai; Mason, Christopher; Hatzis, Christos; Shi, Leming; Aerts, Hugo JWL; Quackenbush, John; Haibe-Kains, Benjamin

    2016-01-01

    In 2013 we published an analysis demonstrating that drug response data and gene-drug associations reported in two independent large-scale pharmacogenomic screens, Genomics of Drug Sensitivity in Cancer (GDSC) and Cancer Cell Line Encyclopedia (CCLE), were inconsistent. The GDSC and CCLE investigators recently reported that their respective studies exhibit reasonable agreement and yield similar molecular predictors of drug response, seemingly contradicting our previous findings. Reanalyzing the authors’ published methods and results, we found that their analysis failed to account for variability in the genomic data and more importantly compared different drug sensitivity measures from each study, which substantially deviate from our more stringent consistency assessment. Our comparison of the most updated genomic and pharmacological data from the GDSC and CCLE confirms our published findings that the measures of drug response reported by these two groups are not consistent. We believe that a principled approach to assess the reproducibility of drug sensitivity predictors is necessary before envisioning their translation into clinical settings. PMID:27408686

  17. Phase motion of the scalar {pi}{pi} amplitudes in D{sup +}, D{sub s}{sup +} {yields} {pi}{sup -} {pi}{sup +}{pi}{sup +} decays

    SciTech Connect

    Ignacio Bediaga

    2003-08-13

    We make a direct and model-independent measurement of the low {pi}{sup +} {pi}{sup -} mass phase motion in the D{sup +} {yields} {pi}{sup -} {pi}{sup +}{pi}{sup +} decay. Our preliminary results show a strong phase variation, compatible with the isoscalar {sigma}(500) meson. This result confirms our previous result [1] where we found evidence for the existence of this scalar particle using full Dalitz-plot analysis. We apply the Amplitude Difference (AD) method [2] to the same Fermilab E791 data sample used in the preceding analysis. We also give an example of how we extract the phase motion of the scalar amplitude, looking at the f{sub 0}(980) in D{sub s}{sup +} {yields} {pi}{sup -} {pi}{sup +}{pi}{sup +} decay.

  18. Agreement with Subjects in Lubukusu

    ERIC Educational Resources Information Center

    Diercks, Michael J. K.

    2010-01-01

    This dissertation examines three topics in the morphosyntax of Lubukusu (Bantu, Kenya), all of which are concerned with agreement with subjects: locative inversion, complementizer agreement, and alternative agreement effects in subject extraction. Each topic reports novel Lubukusu data which are both typologically interesting and theoretically…

  19. Mining Agreements with Indian Tribes

    ERIC Educational Resources Information Center

    Luebben, Tom

    1976-01-01

    The article discusses aspects of negotiating agreements for exploration, development, and mining of hard minerals on Indian Reservations. The agreements discussed are typical of copper agreements, but the general points under discussion are applicable to most hard minerals except for uranium, coal, and oil which are substantially different.…

  20. A New Iterative Method to Calculate [pi

    ERIC Educational Resources Information Center

    Dion, Peter; Ho, Anthony

    2012-01-01

    For at least 2000 years people have been trying to calculate the value of [pi], the ratio of the circumference to the diameter of a circle. People know that [pi] is an irrational number; its decimal representation goes on forever. Early methods were geometric, involving the use of inscribed and circumscribed polygons of a circle. However, real…

  1. K/pi Fluctuations at Relativistic Energies

    SciTech Connect

    STAR Collaboration; Abelev, B.I.

    2009-08-24

    We report results for K/{pi} fluctuations from Au+Au collisions at {radical}sNN = 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. Our results for K/{pi} fluctuations in central collisions show little dependence on the incident energies studied and are on the same order as results observed by NA49 at the Super Proton Synchrotron in central Pb+Pb collisions at {radical}sNN = 12.3 and 17.3 GeV. We also report results for the collision centrality dependence of K/{pi} fluctuations as well as results for K{sup +}/{pi}{sup +}, K{sup -}/{pi}{sup -}, K{sup +}/{pi}{sup -}, and K{sup -}/{pi}{sup +} fluctuations. We observe that the K/{pi} fluctuations scale with the multiplicity density, dN/d{eta}, rather than the number of participating nucleons.

  2. Income Share Agreements on Campus: A Practice Guide

    ERIC Educational Resources Information Center

    American Institutes for Research, 2015

    2015-01-01

    Next fall, students at Purdue University may have a new way to pay their tuition: income share agreements (ISAs). ISAs are an alternative form of higher education financing in which students pledge a fixed percentage of future earnings in exchange for money to pay for college. ISAs present a new challenge to the nation's colleges and universities,…

  3. The Parity of the Neutral Pion and the Decay pi{sup 0} Yields 2e{sup +} + 2e{sup -}

    DOE R&D Accomplishments Database

    Samios, N. P.; Plano, R.; Prodell, A.; Schwartz, M.; Steinberger, J.

    1962-01-01

    Two hundred and six electronic decays of the pi{sup 0}, pi{sup 0} yields e{sup +} + e{sup -} + e{sup +} + e{sup -}, were observed in a hydrogen bubble chamber. The decay distributions of the electron pairs and the total rate for this process are shown to be in good agreement with theory. An examination of correlations of the e{sup +}e{sup -} pair decay planes on the basis of electrodynamic predictions is in agreement with the hypothesis that the pi{sup 0} is pseudoscalar, but disagrees for scalar pions by 3.6 standard deviations. (auth)

  4. CP asymmetries in B{yields}K{pi}, K*{pi}, {rho}K decays

    SciTech Connect

    Gronau, Michael; Pirjol, Dan; Zupan, Jure

    2010-05-01

    We show that ratios of tree and penguin amplitudes in B{yields}K*{pi} and B{yields}{rho}K are 2 to 3 times larger than in B{yields}K{pi}. This allows for considerably larger CP asymmetries in the former processes than the 10% asymmetry measured in B{sup 0{yields}}K{sup +{pi}-}. We study isospin sum rules for rate asymmetries in B{yields}K{pi}, K*{pi}, {rho}K, estimating small violation from interference of tree and electroweak penguin amplitudes. The breaking of the K{pi} asymmetry sum rule is estimated to be 1 to 2% and negative. Violation of K*{pi} and {rho}K sum rules can be estimated from B{yields}{rho}{pi} amplitudes using flavor SU(3), while breaking of a sum rule combining K*{pi} and {rho}K asymmetries can be measured directly in a Dalitz analysis of B{sup 0{yields}}K{sup +{pi}-{pi}0}. The three sum rules can be tested using complete sets of data taken at e{sup +}e{sup -} B factories and in experiments at the LHCb and at a future Super Flavor Factory, providing precision searches for new {Delta}S={Delta}I=1 operators in the low-energy effective Hamiltonian.

  5. Hadronic decays of the tau lepton : {tau}- {yields} ({pi}{pi}{pi})- {nu}{tau} within Resonance Chiral Theory

    SciTech Connect

    Gomez Dumm, D.; Pich, A.; Portoles, J.

    2006-01-12

    {tau} decays into hadrons foresee the study of the hadronization of vector and axial-vector QCD currents, yielding relevant information on the dynamics of the resonances entering into the processes. We analyse {tau} {yields} {pi}{pi}{pi}{nu}{tau} decays within the framework of the Resonance Chiral Theory, comparing this theoretical scheme with the experimental data, namely ALEPH spectral function and branching ratio. Hence we get values for the mass and on-shell width of the a 1 (1260) resonance, and provide the structure functions that have been measured by OPAL and CLEO-II.

  6. Improved measurement of branching fractions for {pi}{pi} transitions among {upsilon}(nS) states

    SciTech Connect

    Bhari, S. R.; Pedlar, T. K.; Cronin-Hennessy, D.; Gao, K. Y.; Hietala, J.; Kubota, Y.; Klein, T.; Lang, B. W.; Poling, R.; Scott, A. W.; Zweber, P.; Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Libby, J.; Martin, L.; Powell, A.; Wilkinson, G.; Ecklund, K. M.

    2009-01-01

    Using samples of (5.93{+-}0.10)x10{sup 6} {upsilon}(3S) decays and (9.11{+-}0.14)x10{sup 6} {upsilon}(2S) decays collected with the CLEO detector, we report improved measurements of the following branching fractions: B({upsilon}(3S){yields}{upsilon}(1S){pi}{sup +}{pi}{sup -})=(4.46{+-}0.01{+-}0.13)%, B({upsilon}(2S){yields}{upsilon}(1S){pi}{sup +}{pi}{sup -})=(18.02{+-}0.02{+-}0.61)%, B({upsilon}(3S){yields}{upsilon}(1S){pi}{sup 0}{pi}{sup 0})=(2.24{+-}0.09{+-}0.11)%, B({upsilon}(2S){yields} {upsilon}(1S){pi}{sup 0}{pi}{sup 0})=(8.43{+-}0.16{+-}0.42)%, and B({upsilon}(3S){yields}{upsilon}(2S){pi}{sup 0}{pi}{sup 0})=(1.82{+-}0.09{+-}0.12)%. In each case, the first uncertainty reported is statistical, while the second is systematic.

  7. Noncoding RNA. piRNA-guided transposon cleavage initiates Zucchini-dependent, phased piRNA production.

    PubMed

    Han, Bo W; Wang, Wei; Li, Chengjian; Weng, Zhiping; Zamore, Phillip D

    2015-05-15

    PIWI-interacting RNAs (piRNAs) protect the animal germ line by silencing transposons. Primary piRNAs, generated from transcripts of genomic transposon "junkyards" (piRNA clusters), are amplified by the "ping-pong" pathway, yielding secondary piRNAs. We report that secondary piRNAs, bound to the PIWI protein Ago3, can initiate primary piRNA production from cleaved transposon RNAs. The first ~26 nucleotides (nt) of each cleaved RNA becomes a secondary piRNA, but the subsequent ~26 nt become the first in a series of phased primary piRNAs that bind Piwi, allowing piRNAs to spread beyond the site of RNA cleavage. The ping-pong pathway increases only the abundance of piRNAs, whereas production of phased primary piRNAs from cleaved transposon RNAs adds sequence diversity to the piRNA pool, allowing adaptation to changes in transposon sequence. PMID:25977554

  8. Noncoding RNA. piRNA-guided transposon cleavage initiates Zucchini-dependent, phased piRNA production.

    PubMed

    Han, Bo W; Wang, Wei; Li, Chengjian; Weng, Zhiping; Zamore, Phillip D

    2015-05-15

    PIWI-interacting RNAs (piRNAs) protect the animal germ line by silencing transposons. Primary piRNAs, generated from transcripts of genomic transposon "junkyards" (piRNA clusters), are amplified by the "ping-pong" pathway, yielding secondary piRNAs. We report that secondary piRNAs, bound to the PIWI protein Ago3, can initiate primary piRNA production from cleaved transposon RNAs. The first ~26 nucleotides (nt) of each cleaved RNA becomes a secondary piRNA, but the subsequent ~26 nt become the first in a series of phased primary piRNAs that bind Piwi, allowing piRNAs to spread beyond the site of RNA cleavage. The ping-pong pathway increases only the abundance of piRNAs, whereas production of phased primary piRNAs from cleaved transposon RNAs adds sequence diversity to the piRNA pool, allowing adaptation to changes in transposon sequence.

  9. 75 FR 40837 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-14

    ....gov . Agreement No.: 011279-027. Title: Latin America Agreement. Parties: ABC Discussion Agreement; Caribbean Shipowners Association; Central America Discussion Agreement; Compania Libra de Navegacion Uruguay... America Discussion Agreement; and Zim Integrated Shipping Services, Ltd. Filing Party: Wayne R. Rohde,...

  10. Black, White, Greek...Like Who?: Howard University Student Perceptions of a White Fraternity on Campus

    ERIC Educational Resources Information Center

    Hughey, Matthew W.

    2006-01-01

    On March 2, 1867, the Historically Black College or University (HBCU) Howard University (HU) was founded in Washington, D. C. Almost exactly one year later, the all white fraternity of Pi Kappa Alpha was founded at the University of Virginia. Over 100 years later, on February 18 2006, fifty-five HU students became charter members of Pi Kappa Alpha…

  11. Byzantine agreement method without authentication

    SciTech Connect

    Reischuk, R.K.

    1983-12-01

    This invention relates to a method for achieving Byzantine agreement without authentication among n 100 communicating processors using event counting and thresholding rather than message exchanges and evaluations.

  12. Measurement of the doubly differential cross section for. pi. /sup -/p. -->. pi. /sup +/. pi. /sup -/n near threshold

    SciTech Connect

    Walter, J.B.

    1980-05-01

    The doubly differential cross sections for the ..pi../sup +/ from the reaction ..pi../sup -/p ..-->.. ..pi../sup +/..pi../sup -/n were measured at about twenty points for each of five energies between 245 MeV and 356 MeV. The experiment was carried out at the Clinton P. Anderson Meson Physics Facility, where a double focusing magnetic spectrometer detected the ..pi../sup +/ mesons produced in a liquid hydrogen target. The measurements were normalized by comparison with ..pi../sup -/p elastic scattering measured with the same apparatus. These are the first such measurements in this energy range, and have an accuracy between 4.7% and 39%. The integrated reaction cross section was determined at each energy with an accuracy of about 5%. These agree with but are an improvement over previous measurements in this energy range. Comparison of the extrapolated threshold value of the mean square modulus of the matrix element with the soft pion calculations favors the symmetry breaking mechanism of Weinberg (xi = 0). It also demonstrates the futility of attempting to determine the symmetry breaking parameter xi from a single measurement of the integrated reaction cross section.

  13. Experience and grammatical agreement: Statistical learning shapes number agreement production

    PubMed Central

    Haskell, Todd R.; Thornton, Robert; MacDonald, Maryellen C.

    2009-01-01

    A robust result in research on the production of grammatical agreement is that speakers are more likely to produce an erroneous verb with phrases such as the key to the cabinets, with a singular noun followed by a plural one, than with phrases such as the keys to the cabinet, where a plural noun is followed by a singular. These asymmetries are thought to reflect core language production processes. Previous accounts have attributed error patterns to a syntactic number feature present on plurals but not singulars. An alternative approach is presented in which a process similar to structural priming contributes to the error asymmetry via speakers' past experiences with related agreement constructions. A corpus analysis and two agreement production studies test this account. The results suggest that agreement production is shaped by statistical learning from past language experience. Implications for accounts of agreement are discussed. PMID:19942213

  14. Archimedes' Pi--An Introduction to Iteration.

    ERIC Educational Resources Information Center

    Lotspeich, Richard

    1988-01-01

    One method (attributed to Archimedes) of approximating pi offers a simple yet interesting introduction to one of the basic ideas of numerical analysis, an iteration sequence. The method is described and elaborated. (PK)

  15. K/pi Fluctuations at relativistic energies.

    PubMed

    Abelev, B I; Aggarwal, M M; Ahammed, Z; Anderson, B D; Arkhipkin, D; Averichev, G S; Balewski, J; Barannikova, O; Barnby, L S; Baudot, J; Baumgart, S; Beavis, D R; Bellwied, R; Benedosso, F; Betancourt, M J; Betts, R R; Bhasin, A; Bhati, A K; Bichsel, H; Bielcik, J; Bielcikova, J; Biritz, B; Bland, L C; Bombara, M; Bonner, B E; Botje, M; Bouchet, J; Braidot, E; Brandin, A V; Bruna, E; Bueltmann, S; Burton, T P; Bystersky, M; Cai, X Z; Caines, H; de la Barca Sánchez, M Calderón; Catu, O; Cebra, D; Cendejas, R; Cervantes, M C; Chajecki, Z; Chaloupka, P; Chattopadhyay, S; Chen, H F; Chen, J H; Chen, J Y; Cheng, J; Cherney, M; Chikanian, A; Choi, K E; Christie, W; Clarke, R F; Codrington, M J M; Corliss, R; Cormier, T M; Cosentino, M R; Cramer, J G; Crawford, H J; Das, D; Das, S; Dash, S; Daugherity, M; De Silva, L C; Dedovich, T G; DePhillips, M; Derevschikov, A A; de Souza, R Derradi; Didenko, L; Djawotho, P; Dogra, S M; Dong, X; Drachenberg, J L; Draper, J E; Dunlop, J C; Mazumdar, M R Dutta; Edwards, W R; Efimov, L G; Elhalhuli, E; Elnimr, M; Emelianov, V; Engelage, J; Eppley, G; Erazmus, B; Estienne, M; Eun, L; Fachini, P; Fatemi, R; Fedorisin, J; Feng, A; Filip, P; Finch, E; Fine, V; Fisyak, Y; Gagliardi, C A; Gaillard, L; Gangadharan, D R; Ganti, M S; Garcia-Solis, E J; Geromitsos, A; Geurts, F; Ghazikhanian, V; Ghosh, P; Gorbunov, Y N; Gordon, A; Grebenyuk, O; Grosnick, D; Grube, B; Guertin, S M; Guimaraes, K S F F; Gupta, A; Gupta, N; Guryn, W; Haag, B; Hallman, T J; Hamed, A; Harris, J W; He, W; Heinz, M; Heppelmann, S; Hippolyte, B; Hirsch, A; Hjort, E; Hoffman, A M; Hoffmann, G W; Hofman, D J; Hollis, R S; Huang, H Z; Humanic, T J; Huo, L; Igo, G; Iordanova, A; Jacobs, P; Jacobs, W W; Jakl, P; Jena, C; Jin, F; Jones, C L; Jones, P G; Joseph, J; Judd, E G; Kabana, S; Kajimoto, K; Kang, K; Kapitan, J; Keane, D; Kechechyan, A; Kettler, D; Khodyrev, V Yu; Kikola, D P; Kiryluk, J; Kisiel, A; Klein, S R; Knospe, A G; Kocoloski, A; Koetke, D D; Kopytine, M; Korsch, W; Kotchenda, L; Kouchpil, V; Kravtsov, P; Kravtsov, V I; Krueger, K; Krus, M; Kuhn, C; Kumar, L; Kurnadi, P; Lamont, M A C; Landgraf, J M; LaPointe, S; Lauret, J; Lebedev, A; Lednicky, R; Lee, C-H; Lee, J H; Leight, W; LeVine, M J; Li, C; Li, N; Li, Y; Lin, G; Lindenbaum, S J; Lisa, M A; Liu, F; Liu, J; Liu, L; Ljubicic, T; Llope, W J; Longacre, R S; Love, W A; Lu, Y; Ludlam, T; Ma, G L; Ma, Y G; Mahapatra, D P; Majka, R; Mall, O I; Mangotra, L K; Manweiler, R; Margetis, S; Markert, C; Matis, H S; Matulenko, Yu A; McDonald, D; McShane, T S; Meschanin, A; Milner, R; Minaev, N G; Mioduszewski, S; Mischke, A; Mohanty, B; Morozov, D A; Munhoz, M G; Nandi, B K; Nattrass, C; Nayak, T K; Nelson, J M; Netrakanti, P K; Ng, M J; Nogach, L V; Nurushev, S B; Odyniec, G; Ogawa, A; Okada, H; Okorokov, V; Olson, D; Pachr, M; Page, B S; Pal, S K; Pandit, Y; Panebratsev, Y; Pawlak, T; Peitzmann, T; Perevoztchikov, V; Perkins, C; Peryt, W; Phatak, S C; Pile, P; Planinic, M; Pluta, J; Plyku, D; Poljak, N; Poskanzer, A M; Potukuchi, B V K S; Prindle, D; Pruneau, C; Pruthi, N K; Pujahari, P R; Putschke, J; Raniwala, R; Raniwala, S; Redwine, R; Reed, R; Ridiger, A; Ritter, H G; Roberts, J B; Rogachevskiy, O V; Romero, J L; Rose, A; Roy, C; Ruan, L; Russcher, M J; Sahoo, R; Sakrejda, I; Sakuma, T; Salur, S; Sandweiss, J; Sarsour, M; Schambach, J; Scharenberg, R P; Schmitz, N; Seger, J; Selyuzhenkov, I; Seyboth, P; Shabetai, A; Shahaliev, E; Shao, M; Sharma, M; Shi, S S; Shi, X-H; Sichtermann, E P; Simon, F; Singaraju, R N; Skoby, M J; Smirnov, N; Snellings, R; Sorensen, P; Sowinski, J; Spinka, H M; Srivastava, B; Stadnik, A; Stanislaus, T D S; Staszak, D; Strikhanov, M; Stringfellow, B; Suaide, A A P; Suarez, M C; Subba, N L; Sumbera, M; Sun, X M; Sun, Y; Sun, Z; Surrow, B; Symons, T J M; de Toledo, A Szanto; Takahashi, J; Tang, A H; Tang, Z; Tarini, L H; Tarnowsky, T; Thein, D; Thomas, J H; Tian, J; Timmins, A R; Timoshenko, S; Tlusty, D; Tokarev, M; Tram, V N; Trattner, A L; Trentalange, S; Tribble, R E; Tsai, O D; Ulery, J; Ullrich, T; Underwood, D G; Van Buren, G; van Leeuwen, M; Molen, A M Vander; Vanfossen, J A; Varma, R; Vasconcelos, G M S; Vasilevski, I M; Vasiliev, A N; Videbaek, F; Vigdor, S E; Viyogi, Y P; Vokal, S; Voloshin, S A; Wada, M; Walker, M; Wang, F; Wang, G; Wang, J S; Wang, Q; Wang, X; Wang, X L; Wang, Y; Webb, G; Webb, J C; Westfall, G D; Whitten, C; Wieman, H; Wissink, S W; Witt, R; Wu, Y; Xie, W; Xu, N; Xu, Q H; Xu, Y; Xu, Z; Yang, P; Yepes, P; Yip, K; Yoo, I-K; Yue, Q; Zawisza, M; Zbroszczyk, H; Zhan, W; Zhang, S; Zhang, W M; Zhang, X P; Zhang, Y; Zhang, Z P; Zhao, Y; Zhong, C; Zhou, J; Zoulkarneev, R; Zoulkarneeva, Y; Zuo, J X

    2009-08-28

    We report K/pi fluctuations from Au + Au collisions at sqrt[s(NN)]= 19.6, 62.4, 130, and 200 GeV using the STAR detector at the Relativistic Heavy Ion Collider. K/pi fluctuations in central collisions show little dependence on incident energy and are on the same order as those from NA49 at the Super Proton Synchrotron in central Pb + Pb collisions at sqrt[s(NN)]=12.3 and 17.3 GeV. We report results for the collision centrality dependence of K/pi fluctuations and results for charge-separated fluctuations. We observe that the K/pi fluctuations scale with the charged particle multiplicity density. PMID:19792791

  16. Tracing isospin with the {pi}{sup -}/{pi}{sup +} ratio in central heavy ion collisions

    SciTech Connect

    Zhang Ming; Xiao Zhigang; Zhu Shengjiang

    2010-10-15

    Within an isospin- and momentum-dependent hadronic transport model, we have investigated the isospin mixing with the probe of the {pi}{sup -}/{pi}{sup +} ratio in central isospin asymmetric {sup 96}Ru+{sup 96}Zr collision at an incident energy of 400 MeV/u. The isospin equilibrium is not reached according to the asymmetrical distribution of the {pi}{sup -}/{pi}{sup +} ratio with rapidity. In comparison with the nucleon observable, it suggests that the pion ratio {pi}{sup -}/{pi}{sup +} is a promising observable to probe the relaxation of isospin degree of freedom in central heavy ion collisions without being strongly affected by the surface effect. Because of the small system size and rather strong effect of rescattering on pions, the isospin mixing shows insignificant dependence on the stiffness of the symmetry energy in the relevant colliding system.

  17. Branching fractions and CP asymmetries in B0-->pi0pi0, B+-->pi+pi0, and B+-->K+pi0 decays and isospin analysis of the B-->pipi system.

    PubMed

    Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, J P; Poireau, V; Tisserand, V; Zghiche, A; Grauges-Pous, E; Palano, A; Pompili, A; Chen, J C; Qi, N D; Rong, G; Wang, P; Zhu, Y S; Eigen, G; Ofte, I; Stugu, B; Abrams, G S; Borgland, A W; Breon, A B; Brown, D N; Button-Shafer, J; Cahn, R N; Charles, E; Day, C T; Gill, M S; Gritsan, A V; Groysman, Y; Jacobsen, R G; Kadel, R W; Kadyk, J; Kerth, L T; Kolomensky, Yu G; Kukartsev, G; Lynch, G; Mir, L M; Oddone, P J; Orimoto, T J; Pripstein, M; Roe, N A; Ronan, M T; Wenzel, W A; Barrett, M; Ford, K E; Harrison, T J; Hart, A J; Hawkes, C M; Morgan, S E; Watson, A T; Fritsch, M; Goetzen, K; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Schroeder, T; Steinke, M; Boyd, J T; Chevalier, N; Cottingham, W N; Kelly, M P; Latham, T E; Wilson, F F; Cuhadar-Donszelmann, T; Hearty, C; Knecht, N S; Mattison, T S; McKenna, J A; Thiessen, D; Khan, A; Kyberd, P; Teodorescu, L; Blinov, A E; Blinov, V E; Druzhinin, V P; Golubev, V B; Ivanchenko, V N; Kravchenko, E A; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Yushkov, A N; Best, D; Bruinsma, M; Chao, M; Eschrich, I; Kirkby, D; Lankford, A J; Mandelkern, M; Mommsen, R K; Roethel, W; Stoker, D P; Buchanan, C; Hartfiel, B L; Weinstein, A J R; Foulkes, S D; Gary, J W; Long, O; Shen, B C; Wang, K; del Re, D; Hadavand, H K; Hill, E J; MacFarlane, D B; Paar, H P; Rahatlou, Sh; Sharma, V; Berryhill, J W; Campagnari, C; Cunha, A; Dahmes, B; Hong, T M; Lu, A; Mazur, M A; Richman, J D; Verkerke, W; Beck, T W; Eisner, A M; Heusch, C A; Kroseberg, J; Lockman, W S; Nesom, G; Schalk, T; Schumm, B A; Seiden, A; Spradlin, P; Williams, D C; Wilson, M G; Albert, J; Chen, E; Dubois-Felsmann, G P; Dvoretskii, A; Hitlin, D G; Narsky, I; Piatenko, T; Porter, F C; Ryd, A; Samuel, A; Yang, S; Jayatilleke, S; Mancinelli, G; Meadows, B T; Sokoloff, M D; Blanc, F; Bloom, P; Chen, S; Ford, W T; Nauenberg, U; Olivas, A; Rankin, P; Ruddick, W O; Smith, J G; Ulmer, K A; Zhang, J; Zhang, L; Chen, A; Eckhart, E A; Harton, J L; Soffer, A; Toki, W H; Wilson, R J; Zeng, Q; Spaan, B; Altenburg, D; Brandt, T; Brose, J; Dickopp, M; Feltresi, E; Hauke, A; Lacker, H M; Nogowski, R; Otto, S; Petzold, A; Schubert, J; Schubert, K R; Schwierz, R; Sundermann, J E; Bernard, D; Bonneaud, G R; Grenier, P; Schrenk, S; Thiebaux, Ch; Vasileiadis, G; Verderi, M; Bard, D J; Clark, P J; Muheim, F; Playfer, S; Xie, Y; Andreotti, M; Azzolini, V; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Luppi, E; Negrini, M; Piemontese, L; Sarti, A; Anulli, F; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Patteri, P; Peruzzi, I M; Piccolo, M; Zallo, A; Buzzo, A; Capra, R; Contri, R; Crosetti, G; Lo Vetere, M; Macri, M; Monge, M R; Passaggio, S; Patrignani, C; Robutti, E; Santroni, A; Tosi, S; Bailey, S; Brandenburg, G; Chaisanguanthum, K S; Morii, M; Won, E; Dubitzky, R S; Langenegger, U; Marks, J; Uwer, U; Bhimji, W; Bowerman, D A; Dauncey, P D; Egede, U; Gaillard, J R; Morton, G W; Nash, J A; Nikolich, M B; Taylor, G P; Charles, M J; Grenier, G J; Mallik, U; Cochran, J; Crawley, H B; Lamsa, J; Meyer, W T; Prell, S; Rosenberg, E I; Rubin, A E; Yi, J; Arnaud, N; Davier, M; Giroux, X; Grosdidier, G; Höcker, A; Le Diberder, F; Lepeltier, V; Lutz, A M; Petersen, T C; Plaszczynski, S; Schune, M H; Wormser, G; Cheng, C H; Lange, D J; Simani, M C; Wright, D M; Bevan, A J; Chavez, C A; Coleman, J P; Forster, I J; Fry, J R; Gabathuler, E; Gamet, R; Hutchcroft, D E; Parry, R J; Payne, D J; Touramanis, C; Cormack, C M; Di Lodovico, F; Brown, C L; Cowan, G; Flack, R L; Flaecher, H U; Green, M G; Jackson, P S; McMahon, T R; Ricciardi, S; Salvatore, F; Winter, M A; Brown, D; Davis, C L; Allison, J; Barlow, N R; Barlow, R J; Hodgkinson, M C; Lafferty, G D; Williams, J C; Chen, C; Farbin, A; Hulsbergen, W D; Jawahery, A; Kovalskyi, D; Lae, C K; Lillard, V; Roberts, D A; Blaylock, G; Dallapiccola, C; Hertzbach, S S; Kofler, R; Koptchev, V B; Moore, T B; Saremi, S; Staengle, H; Willocq, S; Cowan, R; Koeneke, K; Sciolla, G; Sekula, S J; Taylor, F; Yamamoto, R K; Patel, P M; Robertson, S H; Lazzaro, A; Lombardo, V; Palombo, F; Bauer, J M; Cremaldi, L; Eschenburg, V; Godang, R; Kroeger, R; Reidy, J; Sanders, D A; Summers, D J; Zhao, H W; Brunet, S; Côté, D; Taras, P; Nicholson, H; Cavallo, N; Fabozzi, F; Gatto, C; Lista, L; Monorchio, D; Paolucci, P; Piccolo, D; Sciacca, C; Baak, M; Bulten, H; Raven, G; Snoek, H L; Wilden, L; Jessop, C P; LoSecco, J M; Allmendinger, T; Benelli, G; Gan, K K; Honscheid, K; Hufnagel, D; Kagan, H; Kass, R; Pulliam, T; Rahimi, A M; Ter-Antonyan, R; Wong, Q K; Brau, J; Frey, R; Igonkina, O; Lu, M; Potter, C T; Sinev, N B; Strom, D; Torrence, E; Colecchia, F; Dorigo, A; Galeazzi, F; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simonetto, F; Stroili, R; Voci, C; Benayoun, M; Briand, H; Chauveau, J; David, P; de la Vaissière, Ch; Del Buono, L; Hamon, O; John, M J J; Leruste, Ph; Malcles, J; Ocariz, J; Roos, L; Therin, G; Behera, P K; Gladney, L; Guo, Q H; Panetta, J; Biasini, M; Covarelli, R; Pioppi, M; Angelini, C; Batignani, G; Bettarini, S; Bondioli, M; Bucci, F; Calderini, G; Carpinelli, M; Forti, F; Giorgi, M A; Lusiani, A; Marchiori, G; Morganti, M; Neri, N; Paoloni, E; Rama, M; Rizzo, G; Simi, G; Walsh, J; Haire, M; Judd, D; Paick, K; Wagoner, D E; Danielson, N; Elmer, P; Lau, Y P; Lu, C; Miftakov, V; Olsen, J; Smith, A J S; Telnov, A V; Bellini, F; Cavoto, G; D'Orazio, A; Di Marco, E; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Li Gioi, L; Mazzoni, M A; Morganti, S; Pierini, M; Piredda, G; Polci, F; Safai Tehrani, F; Voena, C; Christ, S; Schröder, H; Wagner, G; Waldi, R; Adye, T; De Groot, N; Franek, B; Gopal, G P; Olaiya, E O; Aleksan, R; Emery, S; Gaidot, A; Ganzhur, S F; Giraud, P-F; Hamel de Monchenault, G; Kozanecki, W; Legendre, M; London, G W; Mayer, B; Schott, G; Vasseur, G; Yèche, Ch; Zito, M; Purohit, M V; Weidemann, A W; Wilson, J R; Yumiceva, F X; Abe, T; Allen, M; Aston, D; Bartoldus, R; Berger, N; Boyarski, A M; Buchmueller, O L; Claus, R; Convery, M R; Cristinziani, M; De Nardo, G; Dingfelder, J C; Dong, D; Dorfan, J; Dujmic, D; Dunwoodie, W; Fan, S; Field, R C; Glanzman, T; Gowdy, S J; Hadig, T; Halyo, V; Hast, C; Hryn'ova, T; Innes, W R; Kelsey, M H; Kim, P; Kocian, M L; Leith, D W G S; Libby, J; Luitz, S; Luth, V; Lynch, H L; Marsiske, H; Messner, R; Muller, D R; O'Grady, C P; Ozcan, V E; Perazzo, A; Perl, M; Ratcliff, B N; Roodman, A; Salnikov, A A; Schindler, R H; Schwiening, J; Snyder, A; Soha, A; Stelzer, J; Strube, J; Su, D; Sullivan, M K; Thompson, J; Va'vra, J; Wagner, S R; Weaver, M; Wisniewski, W J; Wittgen, M; Wright, D H; Yarritu, A K; Young, C C; Burchat, P R; Edwards, A J; Majewski, S A; Petersen, B A; Roat, C; Ahmed, M; Ahmed, S; Alam, M S; Ernst, J A; Saeed, M A; Saleem, M; Wappler, F R; Bugg, W; Krishnamurthy, M; Spanier, S M; Eckmann, R; Kim, H; Ritchie, J L; Satpathy, A; Schwitters, R F; Izen, J M; Kitayama, I; Lou, X C; Ye, S; Bianchi, F; Bona, M; Gallo, F; Gamba, D; Bosisio, L; Cartaro, C; Cossutti, F; Della Ricca, G; Dittongo, S; Grancagnolo, S; Lanceri, L; Poropat, P; Vitale, L; Vuagnin, G; Martinez-Vidal, F; Panvini, R S; Banerjee, Sw; Bhuyan, B; Brown, C M; Fortin, D; Jackson, P D; Kowalewski, R; Roney, J M; Sobie, R J; Back, J J; Harrison, P F; Mohanty, G B; Band, H R; Chen, X; Cheng, B; Dasu, S; Datta, M; Eichenbaum, A M; Flood, K T; Graham, M; Hollar, J J; Johnson, J R; Kutter, P E; Li, H; Liu, R; Mihalyi, A; Pan, Y; Prepost, R; Tan, P; von Wimmersperg-Toeller, J H; Wu, J; Wu, S L; Yu, Z; Greene, M G; Neal, H

    2005-05-13

    Based on a sample of 227 x 10(6) BB pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the branching fraction B(B0-->pi(0)pi(0))=(1.17+/-0.32+/-0.10)x10(-6), and the asymmetry Cpi(0)(pi(0))=-0.12+/-0.56+/-0.06. The B0-->pi(0)pi(0) signal has a significance of 5.0 sigma. We also measure B(B+-->pi(+)pi(0))=(5.8+/-0.6+/-0.4)x10(-6), B(B+-->K+pi(0))=(12.0+/-0.7+/-0.6)x10(-6), and the charge asymmetries Api(+)(pi(0))=-0.01+/-0.10+/-0.02 and AK+(pi(0))=0.06+/-0.06+/-0.01. Using isospin relations, we find an upper bound on the angle difference |alpha-alpha(eff)| of 35 degrees at the 90% C.L.

  18. Transgenerationally inherited piRNAs trigger piRNA biogenesis by changing the chromatin of piRNA clusters and inducing precursor processing

    PubMed Central

    Le Thomas, Adrien; Stuwe, Evelyn; Li, Sisi; Marinov, Georgi; Rozhkov, Nikolay; Chen, Yung-Chia Ariel; Luo, Yicheng; Sachidanandam, Ravi; Toth, Katalin Fejes; Patel, Dinshaw; Aravin, Alexei A.

    2014-01-01

    Small noncoding RNAs that associate with Piwi proteins, called piRNAs, serve as guides for repression of diverse transposable elements in germ cells of metazoa. In Drosophila, the genomic regions that give rise to piRNAs, the so-called piRNA clusters, are transcribed to generate long precursor molecules that are processed into mature piRNAs. How genomic regions that give rise to piRNA precursor transcripts are differentiated from the rest of the genome and how these transcripts are specifically channeled into the piRNA biogenesis pathway are not known. We found that transgenerationally inherited piRNAs provide the critical trigger for piRNA production from homologous genomic regions in the next generation by two different mechanisms. First, inherited piRNAs enhance processing of homologous transcripts into mature piRNAs by initiating the ping-pong cycle in the cytoplasm. Second, inherited piRNAs induce installment of the histone 3 Lys9 trimethylation (H3K9me3) mark on genomic piRNA cluster sequences. The heterochromatin protein 1 (HP1) homolog Rhino binds to the H3K9me3 mark through its chromodomain and is enriched over piRNA clusters. Rhino recruits the piRNA biogenesis factor Cutoff to piRNA clusters and is required for efficient transcription of piRNA precursors. We propose that transgenerationally inherited piRNAs act as an epigenetic memory for identification of substrates for piRNA biogenesis on two levels: by inducing a permissive chromatin environment for piRNA precursor synthesis and by enhancing processing of these precursors. PMID:25085419

  19. Off-Mass-Shell {pi}N Scattering and pp {yields} pp{pi}{sup 0}

    SciTech Connect

    Pena, M.T.; Coon, S.A.; Adam, J. Jr.; Stadler, A.

    2000-12-31

    The authors adapt the off-shell {pi}N amplitude of the Tucson-Melbourne three-body force to the half-off-shell amplitude of the pion rescattering contribution to pp {yields} pp{pi}{sup 0} near threshold. This pion rescattering contribution, together with the impluse term, provides a good description of the data when the half-off-shell amplitude is linked to the phenomenological invariant amplitudes obtained from meson factory {pi}N scattering data.

  20. Skills agreement. Recipe for success.

    PubMed

    Nolan, Alexis

    2007-06-21

    The aims of the national health Sector Skills Agreement need regional and local implementation by stakeholders to become reality. Work in the East of England will produce a first regional skills agreement later this year. The Harlow Project is producing award winning process on recuitment and retention. PMID:17847967

  1. Search for the Rare Decay K(L) ---> pi0 pi0 gamma

    SciTech Connect

    Abouzaid, E.; Arenton, M.; Barker, A.R.; Bellantoni, L.; Blucher, E.; Bock, G.J.; Cheu, E.; Coleman, R.; Corcoran, M.D.; Corti, G.; Cox, B.; /Arizona U. /UCLA /Campinas State U. /Chicago U., EFI /Colorado U. /Elmhurst Coll. /Fermilab /Osaka U. /Rice U. /Sao Paulo U. /Virginia U.

    2007-08-01

    The KTeV E799 experiment has conducted a search for the rare decay K{sub L} {yields} {pi}{sup 0}{sup 0}{gamma} via the topology K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{sub D}{gamma} (where {pi}{sup 0}{sub D} {yields} {gamma}e{sup +}e{sup -}). Due to Bose statistics of the {pi}{sup 0} pair and the real nature of the photon, the K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{gamma} decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p{sup 4}). Therefore, this mode probes chiral perturbation theory at O(p{sup 6}). In this paper we report a determination of an upper limit of 2.43 x 10{sup -7} (90% CL) for K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{gamma}. This is approximately a factor of 20 lower than previous results.

  2. Effect of dietary components on renal inorganic phosphate (Pi) excretion induced by a Pi-depleted diet.

    PubMed

    Ohnishi, Ritsuko; Segawa, Hiroko; Ohmoto, Tomoyo; Sasaki, Shohei; Hanazaki, Ai; Mori, Ayaka; Ikuta, Kayo; Furutani, Junya; Kawakami, Eri; Tatsumi, Sawako; Hamada, Yasuhiro; Miyamoto, Ken-ichi

    2014-01-01

    Dietary inorganic phosphate (Pi) is the most important factor in the regulation of renal Pi excretion. Recent studies suggest the presence of an enteric-renal signaling axis for dietary Pi as well as the existence of a mechanism by which the intestine detects changes in luminal Pi concentrations. The mechanisms of intestinal Pi sensing, however, are unknown. In the present study, we focused on Pi depletion signals and investigated the effects of dietary components on intestinal Pi sensing. After feeding rats experimental diets for 3 days, we investigated urinary Pi excretion and plasma biochemical parameters. Renal Pi excretion was suppressed in rats fed a low-Pi diet (0.02% Pi). Elimination of dietary calcium (Ca) completely blocked the suppression of Pi excretion, suggesting that the presence of Ca is essential for the Pi depletion signal. Furthermore, a minimum Ca content of more than 0.02% was necessary for the Pi depletion signal. Magnesium, lanthanum, and strontium, which are agonists of calcium sensing receptor, instead of Ca, reduced Pi excretion. Therefore, dietary Ca appears to be important for the Pi depletion-sensing mechanism in the gastrointestinal tract. In addition, the calcium sensing receptor may be involved in the Pi depletion signal.

  3. Accurate ab initio calculations which demonstrate a 3 Pi u ground state for Al2

    NASA Technical Reports Server (NTRS)

    Bauschlicher, Charles W., Jr.; Partridge, Harry; Langhoff, Stephen R.; Taylor, Peter R.; Walch, Stephen P.

    1986-01-01

    The spectroscopic parameters and separations between the three low-lying X 3 Pi u, A 3 Sigma g -, and a 1 Sigma g + states of Al2 are studied as a function of both the one-particle and n-particle basis set. Approximate correlation treatments are calibrated against full Cl calculations correlating the six valence electrons in a double-zeta plus two d-function basis set. Since the CASSCF/MRCI 3 Pi u to 3 Sigma g - separation is in excellent agreement wtih the FCI value, the MRCI calculations were carried out in an extended (20s13p6d4f)/(6s5p3d2f) gaussian basis. Including a small correction for relativistic effects, the best estimate is that 3 Sigma g - state lies 174/cm above the 3 Pi u ground state. The 1 Sigma g + state lies at least 2000/cm higher in energy. At the CPF level, inclusion of 2s and 2p correlation has little effect on D sub e, reduces T sub e by only 26/cm, and shortens the bond lengths by about 0.02 a sub o. Further strong support for a 3 Pi u ground state comes from the experimental absorption spectra, since both observed transitions can be convincingly assigned as 3 Pi u yields 3 Pi g. The (2) 3 Pi g state is observed to be sensitive to the level of correlation treatment, and to have its minimum shifted to shorter rho values, such that the strongest experimental absorption peak probably corresponds to the 0 yields 2 transition.

  4. Silencio/CG9754 connects the Piwi-piRNA complex to the cellular heterochromatin machinery.

    PubMed

    Sienski, Grzegorz; Batki, Julia; Senti, Kirsten-André; Dönertas, Derya; Tirian, Laszlo; Meixner, Katharina; Brennecke, Julius

    2015-11-01

    The repression of transposable elements in eukaryotes often involves their transcriptional silencing via targeted chromatin modifications. In animal gonads, nuclear Argonaute proteins of the PIWI clade complexed with small guide RNAs (piRNAs) serve as sequence specificity determinants in this process. How binding of nuclear PIWI-piRNA complexes to nascent transcripts orchestrates heterochromatin formation and transcriptional silencing is unknown. Here, we characterize CG9754/Silencio as an essential piRNA pathway factor that is required for Piwi-mediated transcriptional silencing in Drosophila. Ectopic targeting of Silencio to RNA or DNA is sufficient to elicit silencing independently of Piwi and known piRNA pathway factors. Instead, Silencio requires the H3K9 methyltransferase Eggless/SetDB1 for its silencing ability. In agreement with this, SetDB1, but not Su(var)3-9, is required for Piwi-mediated transcriptional silencing genome-wide. Due to its interaction with the target-engaged Piwi-piRNA complex, we suggest that Silencio acts as linker between the sequence specificity factor Piwi and the cellular heterochromatin machinery.

  5. Silencio/CG9754 connects the Piwi–piRNA complex to the cellular heterochromatin machinery

    PubMed Central

    Sienski, Grzegorz; Batki, Julia; Senti, Kirsten-André; Dönertas, Derya; Tirian, Laszlo; Meixner, Katharina; Brennecke, Julius

    2015-01-01

    The repression of transposable elements in eukaryotes often involves their transcriptional silencing via targeted chromatin modifications. In animal gonads, nuclear Argonaute proteins of the PIWI clade complexed with small guide RNAs (piRNAs) serve as sequence specificity determinants in this process. How binding of nuclear PIWI–piRNA complexes to nascent transcripts orchestrates heterochromatin formation and transcriptional silencing is unknown. Here, we characterize CG9754/Silencio as an essential piRNA pathway factor that is required for Piwi-mediated transcriptional silencing in Drosophila. Ectopic targeting of Silencio to RNA or DNA is sufficient to elicit silencing independently of Piwi and known piRNA pathway factors. Instead, Silencio requires the H3K9 methyltransferase Eggless/SetDB1 for its silencing ability. In agreement with this, SetDB1, but not Su(var)3-9, is required for Piwi-mediated transcriptional silencing genome-wide. Due to its interaction with the target-engaged Piwi–piRNA complex, we suggest that Silencio acts as linker between the sequence specificity factor Piwi and the cellular heterochromatin machinery. PMID:26494711

  6. The impact of new polarization data from Bonn, Mainz and Jefferson Laboratory on $$\\gamma p \\rightarrow \\pi N$$ multipoles

    DOE PAGES

    Anisovich, A. V.; Beck, R.; Döring, M.; Gottschall, M.; Hartmann, J.; Kashevarov, V.; Klempt, E.; Nikonov, V.; Ostrick, M.; Ronchen, D.; et al

    2016-09-16

    New data on pion-photoproduction off the proton have been included in the partial wave analyses Bonn-Gatchina and SAID and in the dynamical coupled-channel approach Julich-Bonn. All reproduce the recent new data well: the double polarization data for E, G, H, P and T inmore » $$\\gamma p \\to \\pi^0 p$$ from ELSA, the beam asymmetry $$\\Sigma$$ for $$\\gamma p \\to \\pi^0 p$$ and $$\\pi^+ n$$ from Jefferson Laboratory, and the precise new differential cross section and beam asymmetry data $$\\Sigma$$ for $$\\gamma p \\to \\pi^0 p$$ from MAMI. The new fit results for the multipoles are compared with predictions not taking into account the new data. Lastly, the mutual agreement is improved considerably but still far from being perfect.« less

  7. Electroproduction of. pi. sup 0 on the proton near threshold

    SciTech Connect

    Welch, T.P.; Karen, P.H.; Mitchell, J.H.; Norum, B.E. ); Blok, H.P.; van den Brink, H.B. ); de Jager, C.W.; Jans, E.; Lapikas, L.; de Vries, H.; Wesseling, J. , P. O. Box 41882, 1009 DB Amsterdam ); Bergstrom, J. ); Deady, M. )

    1992-11-09

    The electroproduction of {pi}{sup 0} on the proton was measured from 0 to 2.5 MeV above threshold for virtual-photon 4-momenta of {minus}0.05 and {minus}0.1 (GeV/{ital c}){sup 2}. The sum of the lowest-order contributing multipoles, {ital a}{sub 0}={vert bar}{ital E}{sub 0+}{vert bar}{sup 2}{minus}{epsilon}{sub {ital L}}{vert bar}{ital L}{sub 0+}{vert bar}{sup 2}, was determined with a precision an order of magnitude better than previously possible. Our results for {ital a}{sub 0} are consistent with present calculations. Our extracted value for {vert bar}{ital L}{sub 0+}{vert bar}{sup 2} at the photon point'' is in agreement with recent predictions.

  8. Dalitz plot analysis of D{sub s}{sup +}{yields}K{sup +}K{sup -}{pi}{sup +}

    SciTech Connect

    Mitchell, R. E.; Shepherd, M. R.; Besson, D.; Pedlar, T. K.; Xavier, J.; Cronin-Hennessy, D.; Gao, K. Y.; Hietala, J.; Kubota, Y.; Klein, T.; Poling, R.; Scott, A. W.; Zweber, P.; Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tan, B. J. Y.; Tomaradze, A.; Libby, J.; Martin, L.

    2009-04-01

    We perform a Dalitz plot analysis of the decay D{sub s}{sup +}{yields}K{sup +}K{sup -}{pi}{sup +} with the CLEO-c data set of 586 pb{sup -1} of e{sup +}e{sup -} collisions accumulated at {radical}(s)=4.17 GeV. This corresponds to about 0.57x10{sup 6} D{sub s}{sup {+-}}D{sub s}*{sup {+-}} pairs from which we select 14 400 candidates with a background of roughly 15%. In contrast to previous measurements we find good agreement with our data only by including an additional f{sub 0}(1370){pi}{sup +} contribution. We measure the magnitude, phase, and fit fraction of K*(892){sup 0}K{sup +}, {phi}(1020){pi}{sup +}, K{sub 0}{sup *}(1430)K{sup +}, f{sub 0}(980){pi}{sup +}, f{sub 0}(1710){pi}{sup +}, and f{sub 0}(1370){pi}{sup +} contributions and limit the possible contributions of other KK and K{pi} resonances that could appear in this decay.

  9. Dynamical Coupled-Channel Model of pi-N scattering in te W < 2 GeV Nucleon Resonane Region

    SciTech Connect

    Lee, T S.H.; Julia-diaz, B; Matsuyama, A; Sato, T

    2007-12-01

    As a first step to analyze the electromagnetic meson production reactions in the nucleon resonance region, the parameters of the hadronic interactions of a dynamical coupled-channel model, developed in {\\it Physics Reports 439, 193 (2007)}, are determined by fitting the empirical $\\pi N$ elastic scattering amplitudes of SAID up to 2 GeV. The channels included in the calculations are $\\pi N$, $\\eta N$ and $\\pi\\pi N$ which has $\\pi\\Delta$, $\\rho N$, and $\\sigma N$ resonant components. The non-resonant meson-baryon interactions of the model are derived from a set of Lagrangians by using a unitary transformation method. One or two bare excited nucleon states in each of $S$, $P$, $D$, and $F$ partial waves are included to generate the resonant amplitudes in the fits. The predicted total cross sections of $\\pi N$ reactions and $\\pi N\\rightarrow \\eta N$ reactions are in good agreement with the data. Applications of the constructed model in analyzing the electromagnetic meson production data as well as the future developments are discussed.

  10. Federal Facility Agreement progress report

    SciTech Connect

    Not Available

    1993-10-01

    The (SRS) Federal Facility Agreement (FFA) was made effective by the US. Environmental Protection Agency Region IV (EPA) on August 16, 1993. To meet the reporting requirements in Section XXV of the Agreement, the FFA Progress Report was developed. The FFA Progress Report is the first of a series of quarterly progress reports to be prepared by the SRS. As such this report describes the information and action taken to September 30, 1993 on the SRS units identified for investigation and remediation in the Agreement. This includes; rubble pits, runoff basins, retention basin, seepage basin, burning pits, H-Area Tank 16, and spill areas.

  11. Suspension agreements: The status quota

    SciTech Connect

    1996-01-01

    Since the initial filing of anti-dumping actions uranium imports from the former Soviet Union, a maze of filings, agreements, amendments, bills, measures, and deals have emerged on which only the closest observers remain current. Even with all the actions that have taken place, none of the parties appear content with the status quo and changes to the agreements are ongoing. Given this dynamic state of affairs, a recap of events and a summary of the current agreements is helpful for understanding the concerns of the involved parties and digesting future events.

  12. PI(4)P homeostasis: Who controls the controllers?

    PubMed

    Venditti, Rossella; Masone, Maria Chiara; Wilson, Cathal; De Matteis, Maria Antonietta

    2016-01-01

    During recent decades, PI(4)P (phosphoinositol-4-phosphate) has been described as a key regulator of a wide range of cellular functions such as organelle biogenesis, lipid metabolism and distribution, membrane trafficking, ion channels, pumps, and transporter activities. In this review we will focus on the multiple mechanisms that regulate PI(4)P homeostasis ranging from those responsible for the spatial distribution of the PI4 kinases and PI(4)P phosphatase to those controlling their enzymatic activity or the delivery/presentation of the substrate, i.e. PI or PI(4)P, to the PI4Ks or PI(4)P phosphatase, respectively. We will also highlight the open questions in the field mainly dealing with the existence and mode of action of PI(4)P sensors that monitor its amount and can act as a rheostat tuning PI(4)P levels in different compartments and adapting them to the different needs of the cell.

  13. Amplitude Analysis of the Decay $D_s^+ \\to \\pi^+ \\pi^- \\pi^+$ in the Experiment E831/FOCUS

    SciTech Connect

    Schilithz, Anderson Correa; /Rio de Janeiro, CBPF

    2005-01-01

    We present in this thesis the Dalitz Plot analysis of the D{sub s}{sup +} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup +} decay, with the data of the E831/FOCUS, that took data in 1996 and 1997. The masses and widhts of f{sub 0}(980) and f{sub 0}(1370) are free parametres of the fit on Dalitz Plot, objectiving to study in detail these resonances. After this analysis we present the Spectator Model study on the S wave in this decay. For this study we used the formalism developed by M. Svec [2] for scattering. We present the comparison between the Isobar Model, frequently used in Dalitz Plot analysis, and this formalism.

  14. Good Agreements Make Good Friends

    PubMed Central

    Han, The Anh; Pereira, Luís Moniz; Santos, Francisco C.; Lenaerts, Tom

    2013-01-01

    When starting a new collaborative endeavor, it pays to establish upfront how strongly your partner commits to the common goal and what compensation can be expected in case the collaboration is violated. Diverse examples in biological and social contexts have demonstrated the pervasiveness of making prior agreements on posterior compensations, suggesting that this behavior could have been shaped by natural selection. Here, we analyze the evolutionary relevance of such a commitment strategy and relate it to the costly punishment strategy, where no prior agreements are made. We show that when the cost of arranging a commitment deal lies within certain limits, substantial levels of cooperation can be achieved. Moreover, these levels are higher than that achieved by simple costly punishment, especially when one insists on sharing the arrangement cost. Not only do we show that good agreements make good friends, agreements based on shared costs result in even better outcomes. PMID:24045873

  15. Quick Guide: Power Purchase Agreements

    SciTech Connect

    2010-06-25

    Introduction to Federal power purchase agreements (PPAs), including available FEMP services and technical assistance as well as questions to ask when evaluating PPAs for a Federal renewable energy project.

  16. Measurement of the branching fraction ${\\mathcal{B}}(\\Lambda^0_b\\rightarrow \\Lambda^+_c\\pi^-\\pi^+\\pi^-)$ at CDF

    SciTech Connect

    Aaltonen, T.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J.A.; Arisawa, T.; Artikov, A.; /Dubna, JINR /Texas A-M

    2011-12-01

    We report an analysis of the {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} decay in a data sample collected by the CDF II detector at the Fermilab Tevatron corresponding to 2.4 fb{sup -1} of integrated luminosity. We reconstruct the currently largest samples of the decay modes {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}(2595){sup +}{pi}{sup -} (with {Lambda}{sub c}(2595){sup +} {yields} {Lambda}{sub c}{sup +}{pi}{sup +}{pi}{sup -}), {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}(2625){sup +}{pi}{sup -} (with {Lambda}{sub c}(2625){sup +} {yields} {Lambda}{sub c}{sup +}{pi}{sup +}{pi}{sup -}), {Lambda}{sub b}{sup 0} {yields} {Sigma}{sub c}(2455){sup ++}{pi}{sup -}{pi}{sup -} (with {Sigma}{sub c}(2455){sup ++} {yields} {Lambda}{sub c}{sup +}{pi}{sup +}), and {Lambda}{sub b}{sup 0} {yields} {Sigma}{sub c}(2455)0{pi}{sup +}{pi}{sup -} (with {Sigma}{sub c}(2455)0 {yields} {Lambda}{sub c}{sup +}{pi}{sup -}) and measure the branching fractions relative to the {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -} branching fraction. We measure the ratio {Beta}({Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -})/ {Beta}({Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -})=3.04 {+-} 0.33(stat){sub -0.55}{sup +0.70}(syst) which is used to derive {Beta}({Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -})=(26.8{sub -11.2}{sup +11.9}) x 10{sup -3}.

  17. Search for b --> u Transitions in B^{+-} --> [K^{-+} pi^{+-} pi0]_D K^{+-} Decays

    SciTech Connect

    Lees, J.P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D.A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Koch, H.; Schroeder, T.; Asgeirsson, D.J.; Hearty, C.; Mattison, T.S.; /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /INFN, Ferrara /Frascati /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Paris U., VI-VII /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /INFN, Milan /Milan U. /INFN, Milan /INFN, Milan /Milan U. /Mississippi U. /Montreal U. /INFN, Naples /Naples U. /NIKHEF, Amsterdam /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /INFN, Padua /INFN, Padua /Padua U. /Paris U., VI-VII /INFN, Perugia /Perugia U. /INFN, Pisa /Pisa U. /INFN, Pisa /Pisa, Scuola Normale Superiore /INFN, Pisa /Pisa U. /INFN, Pisa /INFN, Pisa /Pisa U. /INFN, Pisa /Princeton U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Southern Methodist U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas Nuclear Corp., Austin /Texas U., Dallas /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /Valencia U. /Victoria U. /Warwick U. /Wisconsin U., Madison

    2011-08-12

    The authors present a study of the decays B{sup {+-}} {yields} DK{sup {+-}} with D mesons reconstructed in the K{sup +}{pi}{sup -}{pi}{sup 0} or K{sup -}{pi}{sup +}{pi}{sup 0} final states, where D indicates a D{sup 0} or a {bar D}{sup 0} meson. Using a sample of 474 million B{bar B} pairs collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at SLAC, they measure the ratios R{sup {+-}} {triple_bond} {Lambda}(B{sup {+-}}{yields}[K{sup {-+}}{pi}{sup {+-}}{pi}{sup 0}]{sub D}K{sup {+-}})/{Lambda}(B{sup {+-}}{yields}[K{sup {+-}}{pi}{sup {-+}}{pi}{sup 0}]{sub D}K{sup {+-}}). They obtain R{sup +} = (5{sub -10}{sup +12}(stat){sub -4}{sup +2}(syst)) x 10{sup -3} and R{sup -} = (12{sub -10}{sup +12}(stat){sub -5}{sup +3}(syst)) x 10{sup -3}, from which they extract the upper limits at 90% probability: R{sup +} < 23 x 10{sup -3} and R{sup -} < 29 x 10{sup -3}. Using these measurements, they obtain an upper limit for the ratio r{sub B} of the magnitudes of the b {yields} u and b {yields} c amplitudes r{sub B} < 0.13 at 90% probability.

  18. Measurement of alpha / phi_2 from B to pi pi Decays

    SciTech Connect

    Bevan, A.J.

    2007-01-17

    The current results on B {yields} {pi}{pi} decays and SU(2) constraints on the Unitarity Triangle angle {alpha} or {phi}{sub 2} from the B-factories are summarized. Based on these measurements, predictions of the isospin analysis constraints at the end of the lifetime of both B-factories are given.

  19. Branching Fraction and Charge Asymmetry Measurements inB to J/psi pi pi Decays

    SciTech Connect

    Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A.; Garra Tico, J.; Grauges, E.; Lopez, L.; Palano, A.; Eigen, G.; Ofte, I.; Stugu, B.; Sun, L.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Button-Shafer, J.; /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Munich, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /Frascati /Genoa U. /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Karlsruhe U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Maryland U. /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Naples U. /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /Paris U., VI-VII /Pennsylvania U. /Perugia U. /Pisa U. /Prairie View A-M /Princeton U. /INFN, Rome /Rostock U. /Rutherford /DSM, DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /Trieste U. /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U.

    2007-04-16

    The authors study the decays B{sup 0} {yields} J/{psi} {pi}{sup +}{pi}{sup -} and B{sup +} {yields} J/{psi} {pi}{sup +}{pi}{sup 0}, including intermediate resonances, using a sample of 382 million B{bar B} pairs recorded by the BABAR detector at the PEP-II e{sup +}e{sup -} B factory. They measure the branching fractions {Beta}(B{sup 0} {yields} J/{psi} {rho}{sup 0}) = (2.7 {+-} 0.3 {+-} 0.17) x 10{sup -5} and {Beta}(B{sup +} {yields} J/{psi} {rho}{sup +}) = (5.0 {+-} 0.7 {+-} 0.31) x 10{sup -5}. The authors also set the following upper limits at the 90% confidence level: {Beta}(B{sup 0} {yields} J/{psi} {pi}{sup +}{pi}{sup -} non-resonant) < 1.2 x 10{sup -5}, {Beta}(B{sup 0} {yields} J/{psi} f{sub 2}) < 4.6 x 10{sup -6}, and {Beta}(B{sup +} {yields} J/{psi} {pi}{sup +}{pi}{sup 0} non-resonant) < 4.4 x 10{sup -6}. They measure the charge asymmetry in charged B decays to J/{psi} {rho} to be -0.11 {+-} 0.12 {+-} 0.08.

  20. International trade agreements: hazards to health?

    PubMed

    Shaffer, Ellen R; Brenner, Joseph E

    2004-01-01

    Since the 1980s, neoliberal policies have prescribed reducing the role of governments, relying on market forces to organize and provide health care and other vital human services. In this context, international trade agreements increasingly serve as mechanisms to enforce the privatization, deregulation, and decentralization of health care and other services, with important implications for democracy as well as for health. Critics contend that social austerity and "free" trade agreements contribute to the rise in global poverty and economic inequality and instability, and therefore to increased preventable illness and death. Under new agreements through the World Trade Organization that cover vital human services such as health care, water, education, and energy, unaccountable, secret trade tribunals could overrule decisions by democratically elected officials on public financing for national health care systems, licensing and training standards for health professionals, patient safety and quality regulations, occupational safety and health, control of hazardous substances such as tobacco and alcohol, the environment, and affordable access to safe water and sanitation. International negotiations in 2003 in Cancun and in Miami suggested that countervailing views are developing momentum. A concerned health care community has begun to call for a moratorium on trade negotiations on health care and water, and to reinvigorate an alternative vision of universal access to vital services.

  1. Empirical agreement in model validation.

    PubMed

    Jebeile, Julie; Barberousse, Anouk

    2016-04-01

    Empirical agreement is often used as an important criterion when assessing the validity of scientific models. However, it is by no means a sufficient criterion as a model can be so adjusted as to fit available data even though it is based on hypotheses whose plausibility is known to be questionable. Our aim in this paper is to investigate into the uses of empirical agreement within the process of model validation.

  2. Application Agreement and Integration Services

    NASA Technical Reports Server (NTRS)

    Driscoll, Kevin R.; Hall, Brendan; Schweiker, Kevin

    2013-01-01

    Application agreement and integration services are required by distributed, fault-tolerant, safety critical systems to assure required performance. An analysis of distributed and hierarchical agreement strategies are developed against the backdrop of observed agreement failures in fielded systems. The documented work was performed under NASA Task Order NNL10AB32T, Validation And Verification of Safety-Critical Integrated Distributed Systems Area 2. This document is intended to satisfy the requirements for deliverable 5.2.11 under Task 4.2.2.3. This report discusses the challenges of maintaining application agreement and integration services. A literature search is presented that documents previous work in the area of replica determinism. Sources of non-deterministic behavior are identified and examples are presented where system level agreement failed to be achieved. We then explore how TTEthernet services can be extended to supply some interesting application agreement frameworks. This document assumes that the reader is familiar with the TTEthernet protocol. The reader is advised to read the TTEthernet protocol standard [1] before reading this document. This document does not re-iterate the content of the standard.

  3. E-Learning Systems Support of Collaborative Agreements: A Theoretical Model

    ERIC Educational Resources Information Center

    Aguirre, Sandra; Quemada, Juan

    2012-01-01

    This paper introduces a theoretical model for developing integrated degree programmes through e-learning systems as stipulated by a collaboration agreement signed by two universities. We have analysed several collaboration agreements between universities at the national, European, and transatlantic level as well as various e-learning frameworks. A…

  4. 7 CFR 247.4 - Agreements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... CHILD NUTRITION PROGRAMS COMMODITY SUPPLEMENTAL FOOD PROGRAM § 247.4 Agreements. (a) What agreements are..., sex, or disability. (d) What is the duration of required agreements? Agreements between FNS and...

  5. 7 CFR 247.4 - Agreements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... CHILD NUTRITION PROGRAMS COMMODITY SUPPLEMENTAL FOOD PROGRAM § 247.4 Agreements. (a) What agreements are..., sex, or disability. (d) What is the duration of required agreements? Agreements between FNS and...

  6. Dalitz-plot Analysis of B0 -> anti-D0 pi pi-

    SciTech Connect

    del Amo Sanchez, P.; Lees, J.P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Battaglia, M.; Brown, David Nathan; Hooberman, B.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; Tanabe, T.; /more authors..

    2010-08-25

    The authors report preliminary results from a study of the decay B{sup 0} {yields} {bar D}{sup 0}{pi}{sup +}{pi}{sup -} using a data sample of 470.9 {+-} 2.8 million B{bar B} events collected with the BABAR detector at the {Upsilon}(4S) resonance. Using the Dalitz-plot analysis technique, they find contributions from the intermediate resonances D*{sub 2}(2460){sup -}, D*{sub 0}(2400){sup -}, {rho}(770){sup 0} and f{sub 2}(1270) as well as a {pi}{sup +}{pi}{sup -} S-wave term, a {bar D}{sup 0}{pi}{sup -} nonresonant S-wave term and a virtual D*(2010) amplitude. They measure the branching fractions of the contributing decays.

  7. Study of {eta}{pi}{sup +}{pi}{sup -} system produced on the VES setup

    SciTech Connect

    Ryabchikov, D.; Bugg, D

    1998-05-29

    The results of the Partial Wave Analysis of the reaction {pi}{sup -}p{yields}{eta}{pi}{sup +}{pi}{sup -}n are presented. The low-t sample is dominated by states, having OPE quantum numbers: 1{sup --},3{sup --},...,2{sup ++},4{sup ++},... . The most intensive wave is J{sup PC}=1{sup --}{rho}(770){eta}. The waves 3{sup --}{rho}(770){eta} and a{sub 2}(1320){pi} show the decay of {rho}{sub 3}(1690) meson, accompanied by further higher-mass resonances. The AX, f{sub 2}(1565), is observed decaying to [a{sub 2}(1320){pi}]{sub L=1}. In high-t sample the peak near 1.28 GeV consists of J{sup PC}=1{sup ++} and 0{sup -+} waves, while the peak near 1.40 GeV is completely 0{sup -+}.

  8. Measuring the charged pion polarizability in the gamma gamma -> pi+pi- reaction

    SciTech Connect

    Lawrence, David W.; Miskimen, Rory A.; Mushkarenkov, Alexander Nikolaevich; Smith, Elton S.

    2013-08-01

    Development has begun of a new experiment to measure the charged pion polarizability $\\alpha_{\\pi}-\\beta_{\\pi}$. The charged pion polarizability ranks among the most important tests of low-energy QCD presently unresolved by experiment. Analogous to precision measurements of $\\pi^{\\circ}\\rightarrow\\gamma\\gamma$ that test the intrinsic odd-parity (anomalous) sector of QCD, the pion polarizability tests the intrinsic even-parity sector of QCD. The measurement will be performed using the $\\gamma\\gamma\\rightarrow\\pi^{+{}}\\pi^{-{}}$ cross section accessed via the Primakoff mechanism on nuclear targets using the GlueX detector in Hall D at Jefferson Lab. The linearly polarized photon source in Hall-D will be utilized to separate the Primakoff cross-section from coherent $\\rho^{\\circ}$ production.

  9. PCR-based screening for the most prevalent alpha 1 antitrypsin deficiency mutations (PI S, Z, and Mmalton) in COPD patients from Eastern Tunisia.

    PubMed

    Denden, Sabri; Lakhdar, Ramzi; Keskes, Nadia Boudawara; Hamdaoui, Mohamed Hedi; Chibani, Jemni Ben; Khelil, Amel Haj

    2013-10-01

    It is generally agreed that the protease inhibitor (PI) alleles PI*S (Val264Glu) and PI*Z (Lys342Glu) are the most common alpha 1 antitrypsin deficiency variants worldwide, but the PI*Mmalton allele (ΔPhe52) prevails over these variants in some Mediterranean regions. In eastern Tunisia (Mahdia), we screened 100 subjects with chronic obstructive pulmonary disease for these variants. The PI*S and PI*Z alleles were genotyped by the previously described SexAI/Hpγ99I RFLP-PCR. We provide here a new method for PI*Mmalton genotyping using mismatched RFLP-PCR. These methods are suitable for routine clinical application and can easily be reproduced by several laboratories, since they do not require extensive optimization, unlike the previously described bidirectional allele-specific amplification PCR for PI*Mmalton genotyping. Our results were in agreement with previous reports from central Tunisia (Kairouan), suggesting that the PI*Mmalton mutation is the most frequent alpha 1 antitrypsin deficiency-related mutation in Tunisia.

  10. Evidence for charged B meson decays to a1+/-(1260)pi0 and a1(0)(1260)pi+/-.

    PubMed

    Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A; Garra Tico, J; Grauges, E; Lopez, L; Palano, A; Eigen, G; Stugu, B; Sun, L; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J; Cahn, R N; Groysman, Y; Jacobsen, R G; Kadyk, J A; Kerth, L T; Kolomensky, Yu G; Kukartsev, G; Lopes Pegna, D; Lynch, G; Mir, L M; Orimoto, T J; Ronan, M T; Tackmann, K; Wenzel, W A; Del Amo Sanchez, P; Hawkes, C M; Watson, A T; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Schroeder, T; Steinke, M; Walker, D; Asgeirsson, D J; Cuhadar-Donszelmann, T; Fulsom, B G; Hearty, C; Mattison, T S; McKenna, J A; Khan, A; Saleem, M; Teodorescu, L; Blinov, V E; Bukin, A D; Druzhinin, V P; Golubev, V B; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Todyshev, K Yu; Bondioli, M; Curry, S; Eschrich, I; Kirkby, D; Lankford, A J; Lund, P; Mandelkern, M; Martin, E C; Stoker, D P; Abachi, S; Buchanan, C; Foulkes, S D; Gary, J W; Liu, F; Long, O; Shen, B C; Zhang, L; Paar, H P; Rahatlou, S; Sharma, V; Berryhill, J W; Campagnari, C; Cunha, A; Dahmes, B; Hong, T M; Kovalskyi, D; Richman, J D; Beck, T W; Eisner, A M; Flacco, C J; Heusch, C A; Kroseberg, J; Lockman, W S; Schalk, T; Schumm, B A; Seiden, A; Wilson, M G; Winstrom, L O; Chen, E; Cheng, C H; Fang, F; Hitlin, D G; Narsky, I; Piatenko, T; Porter, F C; Andreassen, R; Mancinelli, G; Meadows, B T; Mishra, K; Sokoloff, M D; Blanc, F; Bloom, P C; Chen, S; Ford, W T; Hirschauer, J F; Kreisel, A; Nagel, M; Nauenberg, U; Olivas, A; Smith, J G; Ulmer, K A; Wagner, S R; Zhang, J; Gabareen, A M; Soffer, A; Toki, W H; Wilson, R J; Winklmeier, F; Altenburg, D D; Feltresi, E; Hauke, A; Jasper, H; Merkel, J; Petzold, A; Spaan, B; Wacker, K; Klose, V; Kobel, M J; Lacker, H M; Mader, W F; Nogowski, R; Schubert, J; Schubert, K R; Schwierz, R; Sundermann, J E; Volk, A; Bernard, D; Bonneaud, G R; Latour, E; Lombardo, V; Thiebaux, Ch; Verderi, M; Clark, P J; Gradl, W; Muheim, F; Playfer, S; Robertson, A I; Xie, Y; Andreotti, M; Bettoni, D; Bozzi, C; Calabrese, R; Cecchi, A; Cibinetto, G; Franchini, P; Luppi, E; Negrini, M; Petrella, A; Piemontese, L; Prencipe, E; Santoro, V; Anulli, F; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Pacetti, S; Patteri, P; Peruzzi, I M; Piccolo, M; Rama, M; Zallo, A; Buzzo, A; Contri, R; Lo Vetere, M; Macri, M M; Monge, M R; Passaggio, S; Patrignani, C; Robutti, E; Santroni, A; Tosi, S; Chaisanguanthum, K S; Morii, M; Wu, J; Dubitzky, R S; Marks, J; Schenk, S; Uwer, U; Bard, D J; Dauncey, P D; Flack, R L; Nash, J A; Panduro Vazquez, W; Tibbetts, M; Behera, P K; Chai, X; Charles, M J; Mallik, U; Ziegler, V; Cochran, J; Crawley, H B; Dong, L; Eyges, V; Meyer, W T; Prell, S; Rosenberg, E I; Rubin, A E; Gao, Y Y; Gritsan, A V; Guo, Z J; Lae, C K; Denig, A G; Fritsch, M; Schott, G; Arnaud, N; Béquilleux, J; Davier, M; Grosdidier, G; Höcker, A; Lepeltier, V; Le Diberder, F; Lutz, A M; Pruvot, S; Rodier, S; Roudeau, P; Schune, M H; Serrano, J; Sordini, V; Stocchi, A; Wang, W F; Wormser, G; Lange, D J; Wright, D M; Bingham, I; Chavez, C A; Forster, I J; Fry, J R; Gabathuler, E; Gamet, R; Hutchcroft, D E; Payne, D J; Schofield, K C; Touramanis, C; Bevan, A J; George, K A; Di Lodovico, F; Menges, W; Sacco, R; Cowan, G; Flaecher, H U; Hopkins, D A; Paramesvaran, S; Salvatore, F; Wren, A C; Brown, D N; Davis, C L; Allison, J; Barlow, N R; Barlow, R J; Chia, Y M; Edgar, C L; Lafferty, G D; West, T J; Yi, J I; Anderson, J; Chen, C; Jawahery, A; Roberts, D A; Simi, G; Tuggle, J M; Blaylock, G; Dallapiccola, C; Hertzbach, S S; Li, X; Moore, T B; Salvati, E; Saremi, S; Cowan, R; Dujmic, D; Fisher, P H; Koeneke, K; Sciolla, G; Sekula, S J; Spitznagel, M; Taylor, F; Yamamoto, R K; Zhao, M; Zheng, Y; McLachlin, S E; Patel, P M; Robertson, S H; Lazzaro, A; Palombo, F; Bauer, J M; Cremaldi, L; Eschenburg, V; Godang, R; Kroeger, R; Sanders, D A; Summers, D J; Zhao, H W; Brunet, S; Côté, D; Simard, M; Taras, P; Viaud, F B; Nicholson, H; De Nardo, G; Fabozzi, F; Lista, L; Monorchio, D; Sciacca, C; Baak, M A; Raven, G; Snoek, H L; Jessop, C P; Losecco, J M; Benelli, G; Corwin, L A; Honscheid, K; Kagan, H; Kass, R; Morris, J P; Rahimi, A M; Regensburger, J J; Wong, Q K; Blount, N L; Brau, J; Frey, R; Igonkina, O; Kolb, J A; Lu, M; Rahmat, R; Sinev, N B; Strom, D; Strube, J; Torrence, E; Gagliardi, N; Gaz, A; Margoni, M; Morandin, M; Pompili, A; Posocco, M; Rotondo, M; Simonetto, F; Stroili, R; Voci, C; Ben-Haim, E; Briand, H; Calderini, G; Chauveau, J; David, P; Del Buono, L; de la Vaissière, Ch; Hamon, O; Leruste, Ph; Malclès, J; Ocariz, J; Perez, A; Gladney, L; Biasini, M; Covarelli, R; Manoni, E; Angelini, C; Batignani, G; Bettarini, S; Carpinelli, M; Cenci, R; Cervelli, A; Forti, F; Giorgi, M A; Lusiani, A; Marchiori, G; Mazur, M A; Morganti, M; Neri, N; Paoloni, E; Rizzo, G; Walsh, J J; Haire, M; Biesiada, J; Elmer, P; Lau, Y P; Lu, C; Olsen, J; Smith, A J S; Telnov, A V; Baracchini, E; Bellini, F; Cavoto, G; D'Orazio, A; Del Re, D; Di Marco, E; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Jackson, P D; Li Gioi, L; Mazzoni, M A; Morganti, S; Piredda, G; Polci, F; Renga, F; Voena, C; Ebert, M; Hartmann, T; Schröder, H; Waldi, R; Adye, T; Castelli, G; Franek, B; Olaiya, E O; Ricciardi, S; Roethel, W; Wilson, F F; Aleksan, R; Emery, S; Escalier, M; Gaidot, A; Ganzhur, S F; Hamel de Monchenault, G; Kozanecki, W; Vasseur, G; Yèche, Ch; Zito, M; Chen, X R; Liu, H; Park, W; Purohit, M V; Wilson, J R; Allen, M T; Aston, D; Bartoldus, R; Bechtle, P; Berger, N; Claus, R; Coleman, J P; Convery, M R; Dingfelder, J C; Dorfan, J; Dubois-Felsmann, G P; Dunwoodie, W; Field, R C; Glanzman, T; Gowdy, S J; Graham, M T; Grenier, P; Hast, C; Hryn'ova, T; Innes, W R; Kaminski, J; Kelsey, M H; Kim, H; Kim, P; Kocian, M L; Leith, D W G S; Li, S; Luitz, S; Luth, V; Lynch, H L; Macfarlane, D B; Marsiske, H; Messner, R; Muller, D R; O'Grady, C P; Ofte, I; Perazzo, A; Perl, M; Pulliam, T; Ratcliff, B N; Roodman, A; Salnikov, A A; Schindler, R H; Schwiening, J; Snyder, A; Stelzer, J; Su, D; Sullivan, M K; Suzuki, K; Swain, S K; Thompson, J M; Va'vra, J; van Bakel, N; Wagner, A P; Weaver, M; Wisniewski, W J; Wittgen, M; Wright, D H; Yarritu, A K; Yi, K; Young, C C; Burchat, P R; Edwards, A J; Majewski, S A; Petersen, B A; Wilden, L; Ahmed, S; Alam, M S; Bula, R; Ernst, J A; Jain, V; Pan, B; Saeed, M A; Wappler, F R; Zain, S B; Bugg, W; Krishnamurthy, M; Spanier, S M; Eckmann, R; Ritchie, J L; Ruland, A M; Schilling, C J; Schwitters, R F; Izen, J M; Lou, X C; Ye, S; Bianchi, F; Gallo, F; Gamba, D; Pelliccioni, M; Bomben, M; Bosisio, L; Cartaro, C; Cossutti, F; Della Ricca, G; Lanceri, L; Vitale, L; Azzolini, V; Lopez-March, N; Martinez-Vidal, F; Milanes, D A; Oyanguren, A; Albert, J; Banerjee, Sw; Bhuyan, B; Hamano, K; Kowalewski, R; Nugent, I M; Roney, J M; Sobie, R J; Harrison, P F; Ilic, J; Latham, T E; Mohanty, G B; Pappagallo, M; Band, H R; Chen, X; Dasu, S; Flood, K T; Hollar, J J; Kutter, P E; Pan, Y; Pierini, M; Prepost, R; Wu, S L; Neal, H

    2007-12-31

    We present measurements of the branching fractions for the decays B;{+/-}-->a_{1};{+/-}(1260)pi;{0} and B;{+/-}-->a_{1};{0}(1260)pi;{+/-} from a data sample of 232x10;{6} BB[over ] pairs produced in e;{+}e;{-} annihilation through the Upsilon(4S) resonance. We measure the branching fraction B(B;{+/-}-->a_{1};{+/-}(1260)pi;{0})xB(a_{1};{+/-}(1260)-->pi;{-}pi;{+}pi;{+/-})=(13.2+/-2.7+/-2.1)x10;{-6} with a significance of 4.2sigma, and the branching fraction B(B;{+/-}-->a_{1};{0}(1260)pi;{+/-})xB(a_{1};{0}(1260)-->pi;{-}pi;{+}pi;{0})=(20.4+/-4.7+/-3.4)x10;{-6} with a significance of 3.8sigma, where the first error quoted is statistical and the second is systematic. PMID:18233566

  11. Life of Pi and the moral wound.

    PubMed

    Allen, Thomas E

    2014-12-01

    The "moral wound," rendered symbolically in the form of the tiger in Life of Pi, is a complex trauma in which the victim, in order to survive in life-threatening circumstances, commits an ethical transgression against his or her deeply held values. Pi experiences such a trauma and deals with it by dissociating it in the form of the tiger and then has to simultaneously both preserve the tiger and wish it to disappear. Jonathan Shay's work relating the experiences of returning Vietnam veterans to Homer's Odyssey is used to further an understanding of both Life of Pi and American soldiers returning from the wars in Iraq and Afghanistan. Reasons are considered for the possible delayed effect of trauma as a factor in the increased suicide rate of older veterans. Finally, the concept of the "moral wound" is discussed, with an eye to its treatment. PMID:25503752

  12. Measurement of CP Parameters in B- --> D(pi+pi-pi0)K- and Study of the X(3872) in B --> J/psi pi+ pi- K with the BaBar Detector

    SciTech Connect

    Winklmeier, Frank; /SLAC

    2006-09-18

    This dissertation presents two analyses performed on data collected with the BABAR detector at the SLAC PEP-II e{sup +}e{sup -} asymmetric-energy B Factory. First, a Dalitz analysis is shown that performs the first measurement of CP violation parameters in the decay B{sup -} {yields} D{sub {pi}{sup +}{pi}{sup -}{pi}{sup 0}}K{sup -} using the decay rate asymmetry and D{sup 0} - {bar D}{sup 0} interference. The results can be used to further constrain the value of the CKM angle {gamma}. The second analysis studies the properties of the X(3872) in neutral and charged B {yields} J/{psi}{pi}{sup +}{pi}{sup -}K decays. Measurements of the branching ratio and mass are presented as well as the search for additional resonances at higher masses.

  13. The Search for Exotic Mesons in gammap-->pi+pi+pi-n with CLAS at Jefferson Lab

    SciTech Connect

    Bookwalter, Craig

    2010-08-01

    In addition to ordinary qq-bar pairs, quantum chromodynamics (QCD) permits many other possibilities in meson spectra, such as gluonic hybrids, glueballs, and tetraquarks. Experimental discovery and study of these exotic states provides insight on the nonperturbative regime of QCD. Over the past twenty years, some searches for exotic mesons have met with controversial results, especially those obtained in the three-pion system. Prior theoretical work indicates that in photoproduction one should find gluonic hybrids at significantly enhanced levels compared to that found in pion production. To that end, the CLAS g12 run was recently completed at Jefferson Lab, using a liquid hydrogen target and tagged photons from a 5.71 GeV electron beam. The CLAS experimental apparatus was modified to maximize forward acceptance for peripheral production of mesons. The resulting data contains the world's largest 3pi photoproduction dataset, with gammap-->pi+pi+pi-n events numbering in the millions. Early results describing the data quality, kinematics, and dysnamics will be shown.

  14. Gender agreement and multiple referents.

    PubMed

    Finocchiaro, Chiara; Mahon, Bradford Z; Caramazza, Alfonso

    2008-01-01

    We report a new pattern of usage in current, spoken Italian that has implications for both psycholinguistic models of language production and linguistic theories of language change. In Italian, gender agreement is mandatory for both singular and plural nouns. However, when two or more nouns of different grammatical gender appear in a conjoined noun phrase (NP), masculine plural agreement is required. In this study, we combined on-line and off-line methodologies in order to assess the mechanisms involved in gender marking in the context of multiple referents. The results of two pronoun production tasks showed that plural feminine agreement was significantly more difficult than plural masculine agreement. In a separate study using offline judgements of acceptability, we found that agreement violations in Italian are tolerated more readily in the case of feminine conjoined noun phrases (e.g., la mela e la banana 'the:fem apple:fem and the: fem banana: fem') than masculine conjoined noun phrases (e.g., il fiore e il libro 'the:mas flower: mas and the:mas book:mas'). Implications of these results are discussed both at the level of functional architecture within the language production system and at the level of changes in language use. PMID:21037930

  15. Gender agreement and multiple referents.

    PubMed

    Finocchiaro, Chiara; Mahon, Bradford Z; Caramazza, Alfonso

    2008-01-01

    We report a new pattern of usage in current, spoken Italian that has implications for both psycholinguistic models of language production and linguistic theories of language change. In Italian, gender agreement is mandatory for both singular and plural nouns. However, when two or more nouns of different grammatical gender appear in a conjoined noun phrase (NP), masculine plural agreement is required. In this study, we combined on-line and off-line methodologies in order to assess the mechanisms involved in gender marking in the context of multiple referents. The results of two pronoun production tasks showed that plural feminine agreement was significantly more difficult than plural masculine agreement. In a separate study using offline judgements of acceptability, we found that agreement violations in Italian are tolerated more readily in the case of feminine conjoined noun phrases (e.g., la mela e la banana 'the:fem apple:fem and the: fem banana: fem') than masculine conjoined noun phrases (e.g., il fiore e il libro 'the:mas flower: mas and the:mas book:mas'). Implications of these results are discussed both at the level of functional architecture within the language production system and at the level of changes in language use.

  16. Gender agreement and multiple referents

    PubMed Central

    Finocchiaro, Chiara; Mahon, Bradford Z.; Caramazza, Alfonso

    2010-01-01

    We report a new pattern of usage in current, spoken Italian that has implications for both psycholinguistic models of language production and linguistic theories of language change. In Italian, gender agreement is mandatory for both singular and plural nouns. However, when two or more nouns of different grammatical gender appear in a conjoined noun phrase (NP), masculine plural agreement is required. In this study, we combined on-line and off-line methodologies in order to assess the mechanisms involved in gender marking in the context of multiple referents. The results of two pronoun production tasks showed that plural feminine agreement was significantly more difficult than plural masculine agreement. In a separate study using offline judgements of acceptability, we found that agreement violations in Italian are tolerated more readily in the case of feminine conjoined noun phrases (e.g., la mela e la banana ‘the:fem apple:fem and the: fem banana: fem’) than masculine conjoined noun phrases (e.g., il fiore e il libro ‘the:mas flower: mas and the:mas book:mas’). Implications of these results are discussed both at the level of functional architecture within the language production system and at the level of changes in language use.* PMID:21037930

  17. A new measurement of the rare decay eta -> pi^0 gamma gamma with the Crystal Ball/TAPS detectors at the Mainz Microtron

    SciTech Connect

    Nefkens, B M; Prakhov, S; Aguar-Bartolom��, P; Annand, J R; Arends, H J; Bantawa, K; Beck, R; Bekrenev, V; Bergh��user, H; Braghieri, A; Briscoe, W J; Brudvik, J; Cherepnya, S; Codling, R F; Collicott, C; Costanza, S; Danilkin, I V; Denig, A; Demissie, B; Dieterle, M; Downie, E J; Drexler, P; Fil'kov, L V; Fix, A; Garni, S; Glazier, D I; Gregor, R; Hamilton, D; Heid, E; Hornidge, D; Howdle, D; Jahn, O; Jude, T C; Kashevarov, V L; K��ser, A; Keshelashvili, I; Kondratiev, R; Korolija, M; Kotulla, M; Koulbardis, A; Kruglov, S; Krusche, B; Lisin, V; Livingston, K; MacGregor, I J; Maghrbi, Y; Mancel, J; Manley, D M; McNicoll, E F; Mekterovic, D; Metag, V; Mushkarenkov, A; Nikolaev, A; Novotny, R; Oberle, M; Ortega, H; Ostrick, M; Ott, P; Otte, P B; Oussena, B; Pedroni, P; Polonski, A; Robinson, J; Rosner, G; Rostomyan, T; Schumann, S; Sikora, M H; Starostin, A; Strakovsky, I I; Strub, T; Suarez, I M; Supek, I; Tarbert, C M; Thiel, M; Thomas, A; Unverzagt, M; Watts, D P; Werthmueller, D; Witthauer, L

    2014-08-01

    A new measurement of the rare, doubly radiative decay eta->pi^0 gamma gamma was conducted with the Crystal Ball and TAPS multiphoton spectrometers together with the photon tagging facility at the Mainz Microtron MAMI. New data on the dependence of the partial decay width, Gamma(eta->pi^0 gamma gamma), on the two-photon invariant mass squared, m^2(gamma gamma), as well as a new, more precise value for the decay width, Gamma(eta->pi^0 gamma gamma) = (0.33+/-0.03_tot) eV, are based on analysis of 1.2 x 10^3 eta->pi^0 gamma gamma decays from a total of 6 x 10^7 eta mesons produced in the gamma p -> eta p reaction. The present results for dGamma(eta->pi^0 gamma gamma)/dm^2(gamma gamma) are in good agreement with previous measurements and recent theoretical calculations for this dependence.

  18. Beam Asymmetries in {pi}{sup 0} Photoproduction on the Proton

    SciTech Connect

    Sparks, Nathan

    2010-08-05

    Polarization observables, such as the beam asymmetry {Sigma}, are vital to the study of the many N* and {Delta} resonances that decay to the p{pi}{sup 0} final state. Beam asymmetries in {pi}{sup 0} photoproduction off the proton have been determined using the Crystal Barrel CsI(Tl) calorimeter at ELSA, University of Bonn in Germany, in the energy range E{gamma} = 920 to 1680 MeV by analyzing the neutral decay mode {pi}{sup 0{yields}{gamma}{gamma}}. In this experiment, the BaF{sub 2} spectrometer TAPS was placed in the forward direction increasing the solid angle coverage to nearly 4{pi} and serving as a fast trigger. For the first time, these measurements include the most forward angles in {theta}{sub {pi}}{sup 0c{center_dot}m}. Additionally, this analysis provides new data points in the energy range E{gamma} = 1510 to 1680 MeV where few measurements have previously been made.

  19. Dalitz Plot Analysis of $B^0_d \\to K+ \\pi^- \\pi^0$ Decays

    SciTech Connect

    Yu, Zhitang; /Wisconsin U., Madison

    2006-05-05

    This thesis describes a Dalitz plot analysis of B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays. The data sample comprises 213 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center in California (SLAC). Preliminary results are presented for measurements of the inclusive branching fraction, quasi-two-body fractions and CP-violating charge asymmetries for intermediate states including K*(892){sup +}{pi}{sup -} and {rho}(770){sup -}K{sup +}. Observations of B{sup 0} decays to the K{pi} S-wave intermediate states, K*{sub 0}(1430){sup +}{pi}{sup -} and K*{sub 0}(1430){sup 0}{pi}{sup 0}, are reported. Evidence of the decay B{sup 0} {yields} K*(892){sup 0}{pi}{sup 0} is seen. We set upper limits at 90% confidence level on branching fractions of the nonresonant and other less significant intermediate states.

  20. Experience and Grammatical Agreement: Statistical Learning Shapes Number Agreement Production

    ERIC Educational Resources Information Center

    Haskell, Todd R.; Thornton, Robert; MacDonald, Maryellen C.

    2010-01-01

    A robust result in research on the production of grammatical agreement is that speakers are more likely to produce an erroneous verb with phrases such as "the key to the cabinets", with a singular noun followed by a plural one, than with phrases such as "the keys to the cabinet", where a plural noun is followed by a singular. These asymmetries are…

  1. Authenticated algorithms for Byzantine agreement

    SciTech Connect

    Dolev, D.; Strong, H.R.

    1983-11-01

    Reaching agreement in a distributed system in the presence of fault processors is a central issue for reliable computer systems. Using an authentication protocol, one can limit the undetected behavior of faulty processors to a simple failure to relay messages to all intended targets. In this paper the authors show that, in spite of such an ability to limit faulty behavior, and no matter what message types or protocols are allowed, reaching (Byzantine) agreement requires at least t+1 phases or rounds of information exchange, where t is an upper bound on the number of faulty processors. They present algorithms for reaching agreement based on authentication that require a total number of messages sent by correctly operating processors that is polynomial in both t and the number of processors, n. The best algorithm uses only t+1 phases and o(nt) messages. 9 references.

  2. Search for CP violation in the decays D0 --> K- K+ and D0 --> pi- pi+.

    PubMed

    Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A; Garra Tico, J; Grauges, E; Lopez, L; Palano, A; Pappagallo, M; Eigen, G; Stugu, B; Sun, L; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J; Cahn, R N; Groysman, Y; Jacobsen, R G; Kadyk, J A; Kerth, L T; Kolomensky, Yu G; Kukartsev, G; Lopes Pegna, D; Lynch, G; Mir, L M; Orimoto, T J; Osipenkov, I L; Ronan, M T; Tackmann, K; Tanabe, T; Wenzel, W A; Del Amo Sanchez, P; Hawkes, C M; Watson, A T; Koch, H; Schroeder, T; Walker, D; Asgeirsson, D J; Cuhadar-Donszelmann, T; Fulsom, B G; Hearty, C; Mattison, T S; McKenna, J A; Barrett, M; Khan, A; Saleem, M; Teodorescu, L; Blinov, V E; Bukin, A D; Druzhinin, V P; Golubev, V B; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Todyshev, K Yu; Bondioli, M; Curry, S; Eschrich, I; Kirkby, D; Lankford, A J; Lund, P; Mandelkern, M; Martin, E C; Stoker, D P; Abachi, S; Buchanan, C; Foulkes, S D; Gary, J W; Liu, F; Long, O; 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Schune, M H; Serrano, J; Sordini, V; Stocchi, A; Wang, W F; Wormser, G; Lange, D J; Wright, D M; Bingham, I; Burke, J P; Chavez, C A; Fry, J R; Gabathuler, E; Gamet, R; Hutchcroft, D E; Payne, D J; Schofield, K C; Touramanis, C; Bevan, A J; George, K A; Di Lodovico, F; Sacco, R; Cowan, G; Flaecher, H U; Hopkins, D A; Paramesvaran, S; Salvatore, F; Wren, A C; Brown, D N; Davis, C L; Allison, J; Bailey, D; Barlow, N R; Barlow, R J; Chia, Y M; Edgar, C L; Lafferty, G D; West, T J; Yi, J I; Anderson, J; Chen, C; Jawahery, A; Roberts, D A; Simi, G; Tuggle, J M; Blaylock, G; Dallapiccola, C; Hertzbach, S S; Li, X; Moore, T B; Salvati, E; Saremi, S; Cowan, R; Dujmic, D; Fisher, P H; Koeneke, K; Sciolla, G; Spitznagel, M; Taylor, F; Yamamoto, R K; Zhao, M; Zheng, Y; McLachlin, S E; Patel, P M; Robertson, S H; Lazzaro, A; Palombo, F; Bauer, J M; Cremaldi, L; Eschenburg, V; Godang, R; Kroeger, R; Sanders, D A; Summers, D J; Zhao, H W; Brunet, S; Côté, D; Simard, M; Taras, P; Viaud, F B; Nicholson, H; De Nardo, G; Fabozzi, F; Lista, L; Monorchio, D; Sciacca, C; Baak, M A; Raven, G; Snoek, H L; Jessop, C P; Knoepfel, K J; Losecco, J M; Benelli, G; Corwin, L A; Honscheid, K; Kagan, H; Kass, R; Morris, J P; Rahimi, A M; Regensburger, J J; Sekula, S J; Wong, Q K; Blount, N L; Brau, J; Frey, R; Igonkina, O; Kolb, J A; Lu, M; Rahmat, R; Sinev, N B; Strom, D; Strube, J; Torrence, E; Gagliardi, N; Gaz, A; Margoni, M; Morandin, M; Pompili, A; Posocco, M; Rotondo, M; Simonetto, F; Stroili, R; Voci, C; Ben-Haim, E; Briand, H; Calderini, G; Chauveau, J; David, P; Del Buono, L; de la Vaissière, Ch; Hamon, O; Leruste, Ph; Malclès, J; Ocariz, J; Perez, A; Prendki, J; Gladney, L; Biasini, M; Covarelli, R; Manoni, E; Angelini, C; Batignani, G; Bettarini, S; Carpinelli, M; Cenci, R; Cervelli, A; Forti, F; Giorgi, M A; Lusiani, A; Marchiori, G; Mazur, M A; Morganti, M; Neri, N; Paoloni, E; Rizzo, G; Walsh, J J; Biesiada, J; Elmer, P; Lau, Y P; Lu, C; Olsen, J; Smith, A J S; Telnov, A V; Baracchini, E; Bellini, F; Cavoto, G; Del Re, D; Di Marco, E; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Jackson, P D; Li Gioi, L; Mazzoni, M A; Morganti, S; Piredda, G; Polci, F; Renga, F; Voena, C; Ebert, M; Hartmann, T; Schröder, H; Waldi, R; Adye, T; Castelli, G; Franek, B; Olaiya, E O; Roethel, W; Wilson, F F; Emery, S; Escalier, M; Gaidot, A; Ganzhur, S F; Hamel de Monchenault, G; Kozanecki, W; Vasseur, G; Yèche, Ch; Zito, M; Chen, X R; Liu, H; Park, W; Purohit, M V; White, R M; Wilson, J R; Allen, M T; Aston, D; Bartoldus, R; Bechtle, P; Claus, R; Coleman, J P; Convery, M R; Dingfelder, J C; Dorfan, J; Dubois-Felsmann, G P; Dunwoodie, W; Field, R C; Glanzman, T; Gowdy, S J; Graham, M T; Grenier, P; Hast, C; Innes, W R; Kaminski, J; Kelsey, M H; Kim, H; Kim, P; Kocian, M L; Leith, D W G S; Li, S; Luitz, S; Luth, V; Lynch, H L; Macfarlane, D B; Marsiske, H; Messner, R; Muller, D R; O'Grady, C P; Ofte, I; Perazzo, A; Perl, M; Pulliam, T; Ratcliff, B N; Roodman, A; Salnikov, A A; Schindler, R H; Schwiening, J; Snyder, A; Su, D; Sullivan, M K; Suzuki, K; Swain, S K; Thompson, J M; Va'vra, J; Wagner, A P; Weaver, M; Wisniewski, W J; Wittgen, M; Wright, D H; Yarritu, A K; Yi, K; Young, C C; Ziegler, V; Burchat, P R; Edwards, A J; Majewski, S A; Miyashita, T S; Petersen, B A; Wilden, L; Ahmed, S; Alam, M S; Bula, R; Ernst, J A; Jain, V; Pan, B; Saeed, M A; Wappler, F R; Zain, S B; Krishnamurthy, M; Spanier, S M; Eckmann, R; Ritchie, J L; Ruland, A M; Schilling, C J; Schwitters, R F; Izen, J M; Lou, X C; Ye, S; Bianchi, F; Gallo, F; Gamba, D; Pelliccioni, M; Bomben, M; Bosisio, L; Cartaro, C; Cossutti, F; Della Ricca, G; Lanceri, L; Vitale, L; Azzolini, V; Lopez-March, N; Martinez-Vidal, F; Milanes, D A; Oyanguren, A; Albert, J; Banerjee, Sw; Bhuyan, B; Hamano, K; Kowalewski, R; Nugent, I M; Roney, J M; Sobie, R J; Harrison, P F; Ilic, J; Latham, T E; Mohanty, G B; Band, H R; Chen, X; Dasu, S; Flood, K T; Hollar, J J; Kutter, P E; Pan, Y; Pierini, M; Prepost, R; Wu, S L; Neal, H

    2008-02-15

    We measure time-integrated CP-violating asymmetries of neutral charmed mesons in the modes D0 --> K(-) K(+) and D0 --> pi(-) pi(+) with the highest precision to date by using D0 --> K(-) pi(+) decays to correct detector asymmetries. An analysis of 385.8 fb(-1) of data collected with the BABAR detector yields values of a(CP)(KK)=(0.00+/-0.34(stat)+/-0.13(syst))% and a(CP)(pipi)=(-0.24+/-0.52(stat)+/-0.22(syst))%, which agree with standard model predictions. PMID:18352456

  3. The White Noise Generator programed on the Raspberry Pi

    NASA Astrophysics Data System (ADS)

    McGill, Ken; Ham, Katie; Schock, Kris; Dowling, Patrick; Kuzell, Chaz

    2014-03-01

    A Raspberry Pi computer, running a Linux based operating system, was programmed for use as a white noise generator. The program was written to output sine waves at a specific frequency with a randomly generated phase. This function generator was programmed specifically for an ongoing undergraduate research project. This research project involves the calculation of the speed of flow through a cylindrical pipe with 128 transducers equally spaced by 0.4 inches down the length of the pipe. The inputted white noise generated serves as an effective technique to induce multiple sine waves of a given frequency to the pipe, as the sine waves are generated at a random phase. Our research group would like to thank Dr. Ken McGill for all of his help, guidance, and time with this research project. We would also like to thank Georgia College and State University for providing the materials used in this experiment.

  4. Double Dalitz plot analysis of the decay B{sup 0{yields}}DK{sup +{pi}-}, D{yields}K{sub S}{sup 0{pi}+{pi}-}

    SciTech Connect

    Gershon, Tim; Poluektov, Anton

    2010-01-01

    It is shown that it is possible to perform a model-independent extraction of the Cabibbo-Kobayashi-Maskawa unitarity triangle angle {gamma} using only the decays B{sup 0{yields}}DK{sup +{pi}-} with D{yields}K{sub S}{sup 0{pi}+{pi}-} and B{sup 0{yields}}DK{sup +{pi}-} with flavor-specific D decays. The proposed method can also utilize the B{sup 0{yields}}DK{sup +{pi}-} data with CP-eigenstate decays of the D meson in a model-independent way.

  5. Study of the {pi}(1800) resonance in diffractive reactions

    SciTech Connect

    Bernikov, E.B.; Bityukov, S.I.; Borisov, G.V.; Gouz, Yu.P.; Dorofeev, V.A.; Dzheladin, R.I.; Ekimov, A.V.; Ivanyushenkov, Yu.M.; Kachaev, I.A.; Karyukhin, A.N.

    1994-09-01

    The results of the VES experiment obtained in 1992 and 1993 are presented. The PWA has been performed for the reactions {pi}{sup {minus}}N {yields} {pi}{sup +}{pi}{sup {minus}}{pi}{sup {minus}}N and {pi}{sup {minus}}N {yields} K{sup +}K{sup {minus}}{pi}{sup {minus}}N. The resonance at m = 1.8 GeV with J{sup PC} = 0{sup {minus}+} is clearly seen in both reactions. 15 refs., 6 figs.

  6. Extracting B({omega}{r_arrow}{pi}{sup +}{pi}{sup {minus}}) from the timelike pion form factor

    SciTech Connect

    Gardner, S.; OConnell, H.B.

    1999-04-01

    We extract the {ital G}-parity-violating branching ratio B({omega}{r_arrow}{pi}{sup +}{pi}{sup {minus}}) from the effective {rho}{sup 0}-{omega} mixing matrix element {tilde {Pi}}{sub {rho}{omega}}(s), determined from e{sup +}e{sup {minus}}{r_arrow}{pi}{sup +}{pi}{sup {minus}} data. The {omega}{r_arrow}{pi}{sup +}{pi}{sup {minus}} partial width can be determined either from the timelike pion form factor or through the constraint that the mixed physical propagator D{sub {rho}{omega}}{sup {mu}{nu}}(s) possesses no poles. The two procedures are inequivalent in practice, and we show why the first is preferred, to find finally B({omega}{r_arrow}{pi}{sup +}{pi}{sup {minus}})=1.9{plus_minus}0.3{percent}. {copyright} {ital 1999} {ital The American Physical Society}

  7. 4. pi. physics with the plastic ball

    SciTech Connect

    Gutbrod, H.H.; Loehner, H.; Poskanzer, A.M.; Renner, T.; Riedesel, H.; Ritter, H.G.; Warwick, A.; Weik, F.; Wieman, H.

    1982-10-01

    4 ..pi.. data taken with the Plastic Ball show that cluster production in relativistic nuclear collisions depends on both the size of the participant volume and the finite size of the cluster. The measurement of the degree of thermalization and the search for collective flow will permit the study of the applicability of macroscopic concepts such as temperature and density.

  8. Prevalence of PI*Z and PI*S alleles of alpha-1-antitrypsin deficiency in Finland.

    PubMed

    Häggblom, Jan; Kettunen, Kaisa; Karjalainen, Jussi; Heliövaara, Markku; Jousilahti, Pekka; Saarelainen, Seppo

    2015-01-01

    The prevalence of PI*Z and PI*S alleles of SERPINA1 gene related to alpha-1-antitrypsin deficiency has previously been estimated to be lower in Finland than in the other countries of Northern Europe. The prevalence of PI*M (Malton) has not been studied in Finland before. We determined alpha-1-antitrypsin PI*Z and PI*S and PI*M (Malton) genotypes from a representative population sample. The number of subjects was 6,354 in the PI*S and PI*M (Malton) genotyping. PI*Z genotyping was performed in a subsample of 2,482 subjects. The allele frequencies were PI*Z 19.7/1,000 and PI*S 10.2/1,000. No PI*M (Malton) was found. The number of carriers of PI*Z and PI*S is significantly higher than previously estimated. The prevalences are in line with the findings in the neighboring countries.

  9. Prevalence of α1-antitrypsin deficiency alleles PI*S and PI*Z worldwide and effective screening for each of the five phenotypic classes PI*MS, PI*MZ, PI*SS, PI*SZ, and PI*ZZ: a comprehensive review.

    PubMed

    de Serres, Frederick J; Blanco, Ignacio

    2012-10-01

    Genetic epidemiological studies on the prevalence and numbers of individuals with α1-antitrypsin deficiency in each of 97 countries worldwide were used to estimate the numbers in each of the five following phenotypic classes: PI*MS, PI*MZ, PI*SS, PI*SZ, and PI*ZZ. These 97 countries were then grouped into 10 major geographic regions to make it possible to compare the numbers in each of these five phenotypic classes in immediately adjacent countries. Such groupings also make it possible to review the spread of the PI*S and PI*Z alleles from one major geographic grouping to another in the world as well as the spread of these two deficiency alleles within a major geographic region. The data in the 10 tables on the numbers in each of the five phenotypic classes in the countries in the same geographic region as well as the prevalence of the PI*S and PI*Z alleles in countries in the same geographic region provide a novel database for the identification of large numbers of individuals in a given phenotypic class. The database also provides useful information for the identification of countries with high numbers of PI*ZZ individuals for augmentation therapy within a given geographic region.

  10. Judges' Agreement and Disagreement Patterns When Encoding Verbal Protocols.

    ERIC Educational Resources Information Center

    Schael, Jocelyne; Dionne, Jean-Paul

    The basis of agreement or disagreement among judges/evaluators when applying a coding scheme to concurrent verbal protocols was studied. The sample included 20 university graduates, from varied backgrounds; 10 subjects had and 10 subjects did not have experience in protocol analysis. The total sample was divided into four balanced groups according…

  11. Articulation Agreements Ease the Way.

    ERIC Educational Resources Information Center

    Reese, Susan

    2002-01-01

    Articulation agreements between secondary and postsecondary institutions often provide for granting college credit for course work completed at another institution. They have been described as programs designed to create pathways of learning that ease the transition of students from secondary to postsecondary levels. (JOW)

  12. Block Transfer Agreement Evaluation Project

    ERIC Educational Resources Information Center

    Bastedo, Helena

    2010-01-01

    The objective of this project is to evaluate for the British Columbia Council on Admissions and Transfer (BCCAT) the effectiveness of block transfer agreements (BTAs) in the BC Transfer System and recommend steps to be taken to improve their effectiveness. Findings of this study revealed that institutions want to expand block credit transfer;…

  13. Observation of the Rare Decay B^+ to K^+ \\pi^0 \\pi^0

    SciTech Connect

    del Amo Sanchez, P.; Lees, J.P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Battaglia, M.; Brown, David Nathan; Hooberman, B.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; Tanabe, T.; /more authors..

    2010-06-11

    We report an analysis of charmless hadronic decays of charged B mesons to the final state K{sup +}{pi}{sup 0}{pi}{sup 0}, using a data sample of 470.9 {+-} 2.8 million B{bar B} events collected with the BABAR detector at the {Upsilon}(4S) resonance. We observe an excess of signal events with a significance above 10 standard deviations including systematic uncertainties and measure the branching fraction to be {Beta}(B{sup +}{yields}K{sup +}{pi}{sup 0}{pi}{sup 0}) = (15.5 {+-} 1.1 {+-} 1.6) x 10{sup -6}, where the uncertainties are statistical and systematic, respectively.

  14. PiMan: system manager for "Pi of the Sky" experiment

    NASA Astrophysics Data System (ADS)

    Cwiok, Mikolaj; Mankiewicz, Lech; Nawrocki, Krzysztof; Sokolowski, Marcin; Wrochna, Grzegorz

    2006-03-01

    This paper describes PiMan, a CORBA based system manager of the "Pi of the Sky" experiment. The "Pi of the Sky" experiment, located at Las Campanas Observatory in Chile searches for rapidly changing optical objects such as Gamma Ray Bursts (GRB). The system is composed of two CCD cameras located on paralactic mount and operated by a PC, equipped with the dedicated software. The software, divided into modules that correspond to hardware or logical components, controls all aspects of data collection and on-line data analysis. The PiMan assures communication between modules, coordinates their behavior and gives possibility to operate the system automatically and to control it remotely over low bandwidth and unstable link.

  15. Precision Measurement of CP Violation in $D^0\\to\\pi^+\\pi^-$ at CDF

    SciTech Connect

    Di Canto, Angelo

    2010-11-01

    We report a preliminary measurement of the CP violating asymmetry in D{sup 0} {yields} {pi}{sup +}{pi}{sup -} using approximately 215,000 decays reconstructed in about 5.94/fb of CDF data. We use the strong D* {+-} D{sup 0}{pi}{sup +} decay (D* tag) to identify the flavor of the charmed meson at production time and exploit CP-conserving strong c-{bar c} pair-production in p-{bar p} collisions. Higher statistic samples of Cabibbo-favored D{sup 0} {yields} K{sup -}{pi}{sup +} decays with and without D* tag are used to highly suppress systematic uncertainties due to detector effects. The result is the world's most precise measurement to date.

  16. Testing the dynamics of B{yields}{pi}{pi} and constraints on {alpha}

    SciTech Connect

    Grossman, Yuval; Hoecker, Andreas; Ligeti, Zoltan; Pirjol, Dan

    2005-11-01

    In charmless nonleptonic B decays to {pi}{pi} or {rho}{rho}, the 'color allowed' and 'color suppressed' tree amplitudes can be studied in a systematic expansion in {alpha}{sub s}(m{sub b}) and {lambda}{sub QCD}/m{sub b}. At leading order in this expansion their relative strong phase vanishes. The implications of this prediction are obscured by penguin contributions. We propose to use this prediction to test the relative importance of the various penguin amplitudes using experimental data. The present B{yields}{pi}{pi} data suggest that there are large corrections to the heavy quark limit, which can be due to power corrections to the tree amplitudes, large up-penguin amplitude, or enhanced weak annihilation. Because the penguin contributions are smaller, the heavy quark limit is more consistent with the B{yields}{rho}{rho} data, and its implications may become important for the extraction of {alpha} from this mode in the future.

  17. 48 CFR 16.702 - Basic agreements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 1 2010-10-01 2010-10-01 false Basic agreements. 16.702... AND CONTRACT TYPES TYPES OF CONTRACTS Agreements 16.702 Basic agreements. (a) Description. A basic... attachment the required and applicable clauses agreed upon in the basic agreement. A basic agreement is not...

  18. 48 CFR 16.702 - Basic agreements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 1 2011-10-01 2011-10-01 false Basic agreements. 16.702... AND CONTRACT TYPES TYPES OF CONTRACTS Agreements 16.702 Basic agreements. (a) Description. A basic... attachment the required and applicable clauses agreed upon in the basic agreement. A basic agreement is not...

  19. 48 CFR 16.702 - Basic agreements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 1 2012-10-01 2012-10-01 false Basic agreements. 16.702... AND CONTRACT TYPES TYPES OF CONTRACTS Agreements 16.702 Basic agreements. (a) Description. A basic... attachment the required and applicable clauses agreed upon in the basic agreement. A basic agreement is not...

  20. 48 CFR 16.702 - Basic agreements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 1 2014-10-01 2014-10-01 false Basic agreements. 16.702... AND CONTRACT TYPES TYPES OF CONTRACTS Agreements 16.702 Basic agreements. (a) Description. A basic... attachment the required and applicable clauses agreed upon in the basic agreement. A basic agreement is not...

  1. 48 CFR 16.702 - Basic agreements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 1 2013-10-01 2013-10-01 false Basic agreements. 16.702... AND CONTRACT TYPES TYPES OF CONTRACTS Agreements 16.702 Basic agreements. (a) Description. A basic... attachment the required and applicable clauses agreed upon in the basic agreement. A basic agreement is not...

  2. A preliminary analysis of {eta}'{yields}{eta}{pi}{pi} in chiral theories

    SciTech Connect

    Escribano, R.

    2010-08-05

    Preliminary results for the Dalitz plot distribution of {eta}'{yields}{eta}{pi}{pi} decays in the frameworks of Large-N{sub c} Chiral Perturbation Theory and Resonance Chiral Theory are given. We hope our results to be of some relevance for the present and forthcoming analysis of these decays at GAMS, CLEO, VES, KLOE-2, Crystal Ball, Crystal Barrel, WASA, and BES-III.

  3. CP violation in the D0 -> pi+ pi- decay at CDF

    SciTech Connect

    Morello, Michael Joseph

    2010-12-01

    We report a measurement of the CP violating asymmetry in D{sup 0} {yields} {pi}{sup +}{pi}{sup -} decays using approximately 215,000 decays reconstructed in about 5.94 fb{sup -1} of CDF data. We use the strong D*{sup +} {yields} D{sup 0}{pi}{sup +} decay ('D* tag') to identify the flavor of the charmed meson at production time and exploit CP-conserving strong c{bar c} pair-production in p{bar p} collisions. Higher statistic samples of Cabibbo-favored D{sup 0} {yields} K{sup -}{pi}{sup +} decays with and without D* tag are used to highly suppress systematic uncertainties due to detector effects. The result, A{sub CP}(D{sup 0} {yields} {pi}{sup +}{pi}{sup -}) = [0.22 {+-} 0.24 (stat.) {+-} 0.11 (syst.)]%, is the world's most precise measurement to date and it is fully consistent with no CP violation.

  4. Exclusive Central $\\pi^{+}\\pi^{-}$ Production in Proton Antiproton Collisions at the CDF

    SciTech Connect

    Zurek, Maria

    2015-01-01

    Exclusive $\\pi^{=}\\pi^{-}$ production in proton-antiproton collisions at $\\sqrt{s}$ = 0.9 and 1.96 TeV in the Collider Detector at Fermilab has been measured. We select events with two particles with opposite charge in pseudorapidity region -1.3 < $\\eta$ < 1.3 with no other particles detected in -5.9 < $\\eta$ < 5.9. Particles are assumed to be pions. The $\\pi^{+}\\pi^{-}$system is required to have rapidity -1.0 < $y$ < 1.0. The data are expected to be dominated by the double pomeron exchange mechanism. Therefore, the quantum numbers of the central state are constrained. The data extend up to dipion mass M($\\pi^{+}\\pi^{-}$) = 5000 MeV/$c^2$. Resonance structures consistent with $f_0$ and $f_2$(1270) mesons are visible. The results are valuable for light hadron spectroscopy and for providing information about the nature of the pomeron in a region between non-perturbative and perturbative quantum chromodynamics

  5. ORKA: Measurement of the $K^ \\to \\pi^+ \

    SciTech Connect

    Comfort, Joseph; Bryman, Douglas; Doria, Luca; Numao, Toshio; Sher, Aleksey; Vavilov, Dimitry; Jaffe, David; Kettell, Steve; Littenberg, Laurence; Worcester, Elizabeth; Bellantoni, Leo; /Fermilab /Illinois U., Urbana /INFN, Naples /INFN, Pisa /Moscow, INR /Dubna, JINR /Northern British Columbia U. / /Mexico U. /San Luis Potosi U.

    2011-11-28

    A high precision measurement of the ultra-rare K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} decay at Fermilab would be one of the most incisive probes of quark flavor physics this decade. Its dramatic reach for uncovering new physics is due to several important factors: (1) The branching ratio is sensitive to most new physics models which extend the Standard Model to solve its considerable problems. (2) The Standard Model predictions for the K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} and K{sub L}{sup 0} {yields} {pi}{sup 0} {nu}{bar {nu}} branching fractions are broadly recognized to be theoretically robust at the 5-10% level. Only a precious few accessible loop-dominated quark processes can be predicted with this level of certainty. (3) The K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} branching fraction is highly suppressed in the Standard Model to the level < 10{sup -10} (<1 part in 10 billion). This suppression allows physics beyond the Standard Model to contribute dramatically to the branching fraction with enhancements of up to factors of 5 above the Standard Model level. (4) The certainty with which the Standard Model contribution to K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} can be predicted will permit a 5{sigma} discovery potential for new physics even for enhancements of the branching fraction as small as 35%. This sensitivity is unique in quark flavor physics and allows probing of essentially all models of new physics that couple to quarks within the reach of the LHC. Furthermore, a high precision measurement of K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} is sensitive to many models of new physics with mass scales well beyond the direct reach of the LHC. The experimental challenge of suppressing backgrounds to enable measurement of K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} at the 1 in 10-billion Standard Model rate has been met successfully. Several events of K{sup +} {yields} {pi}{sup +} {nu}{bar {nu}} decay have been clearly observed at BNL by

  6. Morningside Pi2 Pulsation Observed in Space and on the Ground

    NASA Astrophysics Data System (ADS)

    Ghamry, Essam

    2015-12-01

    In this study, we examined a morningside Pi2 pulsation, with a non-substorm signature, that occurred in very quiet geomagnetic conditions (Kp = 0) at 05:38 UT on December 8, 2012, using data obtained by Van Allen Probes A and B (VAP-A and VAP-B, respectively) and at a ground station. Using 1 sec resolution vector magnetic field data, we measured the X-component of the pulsation from the Abu Simbel ground station (L = 1.07, LT = UT +2 hr, where LT represents local time) in Egypt. At the time of the Pi2 event, Abu Simbel and VAP-A (L = 3.3) were in the morning sector (07:38 LT and 07:59 MLT, respectively, where MLT represents magnetic local time), and VAP-B was in the postmidnight sector (04:18 MLT and L = 5.7). VAP-A and VAP-B observed oscillations in the compressional magnetic field component (Bz), which were in close agreement with the X-component measurements of the Pi2 pulsation that were made at Abu Simbel. The oscillations observed by the satellites and on the ground were in phase. Thus, we concluded that the observed morningside Pi2 pulsation was caused by the cavity resonance mode rather than by ionospheric current systems.

  7. Rare decays of the Z/sup 0/ boson and the. pi. /sup 0/ meson

    SciTech Connect

    Tupper, G.B.

    1984-01-01

    This thesis involves calculations of several rare decay processes. The decays Z/sup 0/ ..-->.. gg..gamma.. and Z/sup 0/ ..-->.. ggg are investigated for massive quarks in the loop. An alternative approach to the decays ..pi../sup 0/ ..-->.. e/sup +/e/sup -/ and nu ..-->.. ..mu../sup +/..mu../sup -/ is examined. Finally, the two-photon-exchange contribution to radiative corrections to ..pi../sup 0/ ..-->.. ..gamma..e/sup +/e/sup -/ is computed. The Z/sup 0/ ..-->.. gg..gamma.. and Z/sup 0/ ..-->.. ggg decay widths are rather sensitive functions in the top quark mass, due to a coherence effect in the amplitudes. By postulating a once-subtracted dispersion relation for the ..pi../sup 0/ ..-->.. e/sup +/e/sup -/ and nu ..-->.. ..mu../sup +/..mu../sup -/ amplitudes, agreement with existing experimental data is achieved. The two-photon-exchange contribution is found to be non-negligible, with important consequences of the determination of the ..pi../sup 0/ form-factor slope.

  8. An Astounding Revelation on the History of Pi.

    ERIC Educational Resources Information Center

    Posamentier, Alfred S.; Gordan, Noam

    1984-01-01

    References to approximations of pi in the Bible and calculations of pi in the Egyptian Phind Papyrus are noted, followed by a finding of an eighteenth-century Polish rabbi about the exactness of the Biblical computation. (MNS)

  9. Resolution to the B{yields}{pi}K puzzle

    SciTech Connect

    Li Hsiangnan; Mishima, Satoshi; Sanda, A.I.

    2005-12-01

    We calculate the important next-to-leading-order contributions to the B{yields}{pi}K, {pi}{pi} decays from the vertex corrections, the quark loops, and the magnetic penguins in the perturbative QCD approach. It is found that the latter two reduce the leading-order penguin amplitudes by about 10% and modify only the B{yields}{pi}K branching ratios. The main effect of the vertex corrections is to increase the small color-suppressed tree amplitude by a factor of 3, which then resolves the large difference between the direct CP asymmetries of the B{sup 0}{yields}{pi}{sup {+-}}K{sup {+-}} and B{sup {+-}}{yields}{pi}{sup 0}K{sup {+-}} modes. The puzzle from the large B{sup 0}{yields}{pi}{sup 0}{pi}{sup 0} branching ratio still remains.

  10. (. pi. sup +- ,. pi. sup +- prime N) reactions on sup 12 C and sup 208 Pb near the giant resonance region

    SciTech Connect

    Yoo, Sung Hoon.

    1990-05-01

    Angular distributions for the {sup 12}C({pi}{sup {plus minus}}, {pi}{sup {plus minus}}{prime} p) and {sup 208}Pb({pi}{sup {plus minus}}, {pi}{sup {plus minus}}{prime} p or n) reactions near the giant resonance region have been measured at T{sub {pi}} = 180 MeV, and found different between {pi}{sup +} and {pi}{sup {minus}} data. This observation is interpreted as evidence for different excitation mechanisms dominating the {pi}{sup {minus}}-nucleus and {pi}{sup +}-nucleus interactions in the giant resonance region of these targets. A comparison with the single-nucleon knock-out distorted-wave impulse approximation calculations shows, even though these calculations underestimate ({pi}{sup {plus minus}}, {pi}{sup {plus minus}}{prime} N) data for both targets, the dominance of direct process for ({pi}{sup +}, {pi}{sup {plus}}{prime} p) or ({pi}{sup {minus}}, {pi}{sup {minus}}{prime} n) in contrast to ({pi}{sup {minus}}, {pi}{sup {minus}}{prime} p) or ({pi}{sup +}, {pi}{sup +}{prime} n). In the ({pi}{sup +}, {pi}{sup +}{prime} p) reaction proton-proton hole states are excited directly and appear to have a large probability for direct decay with escape width, whereas in ({pi}{sup {minus}}, {pi}{sup {minus}}{prime} p) the preferentially excited neutron-neutron hole doorway states couple to resonance states and decay with spreading width. This interpretation led us to suggest that the ratio of cross-sections for inelastic scattering to the giant resonance region should be written in terms of an incoherent sum of cross-sections to neutron and proton doorway states. In a heavy nucleus such as {sup 208}Pb, neutron and proton doorway states. In a heavy nucleus such as {sup 208}Pb, neutron and proton doorway states contribute incoherently because the different decay processes do not populate the same final states of the residual nucleus.

  11. Amplitude Analysis of B0 to K^ pi^-pi^0 and Evidence of Direct CP Violation in B to K^* pi decays

    SciTech Connect

    Lees, J.P.

    2011-11-04

    We analyze the decay B{sup 0} {yields} K{sup +} {pi}{sup -} {pi}{sup 0} with a sample of 454 million B{bar B} events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, and extract the complex amplitudes of seven interfering resonances over the Dalitz plot. These results are combined with amplitudes measured in B{sup 0} {yields} K{sup 0}{sub s}{pi}{sup +}{pi}{sup -} decays to construct isospin amplitudes from B{sup 0} {yields} K{sup *}{pi} and B{sup 0} {yields} {rho}K decays. We measure the phase of the isospin amplitude {Phi}{sub 3/2}, useful in constraining the CKM unitarity triangle angle {gamma} and evaluate a CP rate asymmetry sum rule sensitive to the presence of new physics operators. We measure direct CP violation in B{sup 0} {yields} K{sup *+}{pi}{sup -} decays at the level of 3 {sigma} when measurements from both B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} and B{sup 0} {yields} K{sup 0}{sub s}{pi}{sup +}{pi}{sup -} decays are combined.

  12. 78 FR 15951 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-13

    ... agreement. Agreement No.: 012196. Title: MSC/CSAV Ecuador--North Europe Vessel Sharing Agreement. Parties... on the U.S. East Coast on the one hand, and from ports on the U.S. East Coast to Panama and...

  13. 75 FR 11180 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-10

    ....gov . Agreement No.: 011730-003. Title: GWF/Dole Space Charter and Sailing Agreement. Parties: Dole... China-US Pacific Coast Two-Loop Space Charter, Sailing and Cooperative Working Agreement. Parties:...

  14. 40 CFR 35.1615 - Substate agreements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 CFR 33.240 (Intergovernmental agreements). A State may enter into an agreement with a substate... STATE AND LOCAL ASSISTANCE Cooperative Agreements for Protecting and Restoring Publicly Owned...

  15. 40 CFR 35.1615 - Substate agreements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 CFR 33.240 (Intergovernmental agreements). A State may enter into an agreement with a substate... STATE AND LOCAL ASSISTANCE Cooperative Agreements for Protecting and Restoring Publicly Owned...

  16. 40 CFR 35.1615 - Substate agreements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 CFR 33.240 (Intergovernmental agreements). A State may enter into an agreement with a substate... STATE AND LOCAL ASSISTANCE Cooperative Agreements for Protecting and Restoring Publicly Owned...

  17. 40 CFR 35.1615 - Substate agreements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 CFR 33.240 (Intergovernmental agreements). A State may enter into an agreement with a substate... STATE AND LOCAL ASSISTANCE Cooperative Agreements for Protecting and Restoring Publicly Owned...

  18. 40 CFR 35.1615 - Substate agreements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 CFR 33.240 (Intergovernmental agreements). A State may enter into an agreement with a substate... STATE AND LOCAL ASSISTANCE Cooperative Agreements for Protecting and Restoring Publicly Owned...

  19. 77 FR 61751 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-11

    ... Agreement. Parties: Crowley Latin America Services, LLC and A.P. Moller-Maersk A/S Filing Party: Wayne R... . Agreement No.: 012155-001. Title: MSC/Zim South America East Coast Vessel Sharing Agreement....

  20. Waiting for precise measurements of K{sup +}{yields}{pi}{sup +}{nu}{nu} and K{sub L}{yields}{pi}{sup 0}{nu}{nu}

    SciTech Connect

    Buras, Andrzej J.; Uhlig, Selma; Schwab, Felix

    2008-07-15

    In view of future plans for accurate measurements of the theoretically clean branching ratios Br(K{sup +}{yields}{pi}{sup +}{nu}{nu}) and Br(K{sub L}{yields}{pi}{sup 0}{nu}{nu}), which should occur in the next decade, the relevant formulas for quantities of interest are collected and their theoretical and parametric uncertainties are analyzed. In addition to the angle {beta} in the unitarity triangle (UT), the angle {gamma} can also be determined from these decays with respectable precision and in this context the importance of the recent NNLO QCD calculation on the charm contribution to K{sup +}{yields}{pi}{sup +}{nu}{nu} and of the improved estimate on the long-distance contribution by means of chiral perturbation theory are presented. In addition to known expressions, several new ones that should allow transparent tests of the standard model (SM) and of its extensions are presented. While the review is centered around the SM, models with minimal flavor violation and scenarios with new complex phases in decay amplitudes and meson mixing are also discussed. A review of existing results within specific extensions of the SM, in particular the littlest Higgs model with T-parity, Z{sup '} models, the MSSM, and a model with one universal extra dimension are given. A new ''golden'' relation between B and K systems is derived that involves ({beta},{gamma}) and Br(K{sub L}{yields}{pi}{sup 0}{nu}{nu}), and the virtues of (R{sub t},{beta}), (R{sub b},{gamma}), ({beta},{gamma}), and ({eta},{gamma}) strategies for the UT in the context of K{yields}{pi}{nu}{nu} decays with the goal of testing the SM and its extensions are investigated.

  1. Limiting technology by negotiated agreement

    SciTech Connect

    Carnesale, A.

    1983-01-01

    The author concentrates on anti-ballistic missile (ABM) systems as an example of a continuing effort to limit technology by negotiated agreement. He first discusses the ABM treaty of 1972, ratified by both the US and the USSR. Afterwards, he briefly treats each of the following: ballistic missile defense (BMD) dilemmas; nature of the BMD choice; technology; economics; deterrence; nuclear warfighting; relations with allies; arms control; Star Wars; and on limiting technology.

  2. {pi}-{pi} Interactions and magnetic properties in a series of hybrid inorganic-organic crystals

    SciTech Connect

    Gonzalez, M.; Lemus-Santana, A.A.; Rodriguez-Hernandez, J.; Knobel, M.; Reguera, E.

    2013-01-15

    The series of hybrid inorganic-organic solids T(Im){sub 2}[Ni(CN){sub 4}] with T=Fe, Co, Ni and Im=imidazole were prepared by soft chemical routes from aqueous solutions of the involved building units: imidazole, T{sup 2+} metal and the [Ni(CN){sub 4}]{sup 2-} anionic block. The obtained samples were characterized from infrared and UV-vis spectroscopies, and thermogravimetric, X-ray diffraction and magnetic measurements. Anhydrous solids which crystallize with a monoclinic unit cell, in the I2/a space group with four formula units per cell (Z=4) were obtained. Their crystal structure was solved ab initio from the recorded X-ray powder patterns and then refined by the Rietveld method. The metal T is found with octahedral coordination to four N ends of CN groups and two imidazole molecules while the inner Ni atom preserves its planar coordination. The system of layers remains stacked in an ordered 3D structure through dipole-dipole and {pi}-{pi} interactions between imidazole rings from neighboring layers. In this way, a pillared structure is achieved without requiring the coordination of both nitrogen atoms from imidazole ring. The recorded magnetic data indicate the occurrence of a predominant ferromagnetic interaction at low temperature for Co and Ni but not for Fe. Such magnetic ordering is more favorable for Ni with transition temperature of 14.67 K, which was ascribed to the relatively high polarizing power for this metal. Within the considered T metals, to nickel the highest electron-withdrawing ability corresponds and this leads to an increase for the metal-ligand electron clouds overlapping and to a stronger {pi}-{pi} attractive interaction, two factors that result into a higher magnetic ordering temperature. - Graphical Abstract: Magnetic ordering through the {pi}-{pi} interaction between the imidazole rings. Highlights: Black-Right-Pointing-Pointer Hybrid inorganic-organic solids. Black-Right-Pointing-Pointer Hybrid inorganic-organic molecular based

  3. Genetics Home Reference: activated PI3K-delta syndrome

    MedlinePlus

    ... Health Conditions activated PI3K-delta syndrome activated PI3K-delta syndrome Enable Javascript to view the expand/collapse ... PDF Open All Close All Description Activated PI3K-delta syndrome is a disorder that impairs the immune ...

  4. Measurement Challenges in International Agreements

    NASA Astrophysics Data System (ADS)

    Luke, John

    2006-10-01

    Making measurements in support of international agreements can pose many challenges both from a policy and science point of view. Policy issues may arise because physics measurements made in the area of arms control or disarmament may be deemed too intrusive since they could possibly reveal sensitive information about the material that is being interrogated. Therefore, agreements must include a framework for safeguarding against the potential release of this information. Most of the scientific issues center around the fact that it is desirable to make high quality measurements without any operator interaction. This leads to the development of instrumentation and software that are very stable and robust. Due to different concerns, policy and science priorities may be at odds with one another. Therefore, it is the scientist's challenge - in this field - to keep policy makers informed by conveying what is technically possible and what is not in a manner that is easily understood and also negotiable. In this paper we will discuss some of the technology that has been developed to address some of these challenges in various international and model agreements. We will discuss the principle of informational barrier used in these measurement technologies to safeguard the release of sensitive information. We will also discuss some of the pitfalls that may arise when policy is ill informed about the physical constraints in the making of measurements of nuclear materials.

  5. Accountability under Constraint: The Relationship between Collective Bargaining Agreements and California Schools' and Districts' Performance under No Child Left Behind

    ERIC Educational Resources Information Center

    Strunk, Katharine O.; McEachin, Andrew

    2011-01-01

    The authors examine how the collective bargaining agreement (CBA) negotiated between teachers' unions and districts is associated with schools' and districts' performance under accountability pressures in California. They find that CBA restrictiveness is associated with the increased likelihood that districts will be in Program Improvement (PI)…

  6. Noncoding RNA. piRNA-guided slicing specifies transcripts for Zucchini-dependent, phased piRNA biogenesis.

    PubMed

    Mohn, Fabio; Handler, Dominik; Brennecke, Julius

    2015-05-15

    In animal gonads, PIWI-clade Argonaute proteins repress transposons sequence-specifically via bound Piwi-interacting RNAs (piRNAs). These are processed from single-stranded precursor RNAs by largely unknown mechanisms. Here we show that primary piRNA biogenesis is a 3'-directed and phased process that, in the Drosophila germ line, is initiated by secondary piRNA-guided transcript cleavage. Phasing results from consecutive endonucleolytic cleavages catalyzed by Zucchini, implying coupled formation of 3' and 5' ends of flanking piRNAs. Unexpectedly, Zucchini also participates in 3' end formation of secondary piRNAs. Its function can, however, be bypassed by downstream piRNA-guided precursor cleavages coupled to exonucleolytic trimming. Our data uncover an evolutionarily conserved piRNA biogenesis mechanism in which Zucchini plays a central role in defining piRNA 5' and 3' ends. PMID:25977553

  7. Noncoding RNA. piRNA-guided slicing specifies transcripts for Zucchini-dependent, phased piRNA biogenesis.

    PubMed

    Mohn, Fabio; Handler, Dominik; Brennecke, Julius

    2015-05-15

    In animal gonads, PIWI-clade Argonaute proteins repress transposons sequence-specifically via bound Piwi-interacting RNAs (piRNAs). These are processed from single-stranded precursor RNAs by largely unknown mechanisms. Here we show that primary piRNA biogenesis is a 3'-directed and phased process that, in the Drosophila germ line, is initiated by secondary piRNA-guided transcript cleavage. Phasing results from consecutive endonucleolytic cleavages catalyzed by Zucchini, implying coupled formation of 3' and 5' ends of flanking piRNAs. Unexpectedly, Zucchini also participates in 3' end formation of secondary piRNAs. Its function can, however, be bypassed by downstream piRNA-guided precursor cleavages coupled to exonucleolytic trimming. Our data uncover an evolutionarily conserved piRNA biogenesis mechanism in which Zucchini plays a central role in defining piRNA 5' and 3' ends.

  8. Dalitz Analysis of Ds -> K K- pi-

    SciTech Connect

    del Amo Sanchez, P.; Lees, J.P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D.A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; Koch, H.; Schroeder, T.; /Ruhr U., Bochum /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /INFN, Ferrara /Frascati /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /INFN, Milan /Milan U. /INFN, Milan /INFN, Milan /Milan U. /Mississippi U. /Montreal U. /INFN, Naples /Naples U. /NIKHEF, Amsterdam /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /INFN, Padua /INFN, Padua /Padua U. /Paris U., VI-VII /INFN, Perugia /Perugia U. /INFN, Pisa /Pisa U. /INFN, Pisa /Pisa, Scuola Normale Superiore /INFN, Pisa /Pisa U. /INFN, Pisa /Princeton U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Southern Methodist U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas Nuclear Corp., Austin /Texas U., Dallas /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /Valencia U. /Victoria U. /Warwick U. /Wisconsin U., Madison

    2011-07-06

    We perform a Dalitz plot analysis of about 100,000 D{sub s}{sup +} decays to K{sup +}K{sup -}{pi}{sup +} and measure the complex amplitudes of the intermediate resonances which contribute to this decay mode. We also measure the relative branching fractions of D{sub s}{sup +} {yields} K{sup +}K{sup +}{pi}{sup -} and D{sub s}{sup +} {yields} K{sup +}K{sup +}K{sup -}. For this analysis we use a 384 fb{sup -1} data sample, recorded by the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider running at center-of-mass energies near 10.58 GeV.

  9. Coherent Photoproduction of pi^+ from 3/^He

    SciTech Connect

    Rakhsha Nasseripour, Barry Berman

    2011-03-01

    We have measured the differential cross section for the $\\gamma$$^3$He$\\rightarrow \\pi^+ t$ reaction. This reaction was studied using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab. Real photons produced with the Hall-B bremsstrahlung tagging system in the energy range from 0.50 to 1.55 GeV were incident on a cryogenic liquid $^3$He target. The differential cross sections for the $\\gamma$$^3$He$\\rightarrow \\pi^+ t$ reaction were measured as a function of photon-beam energy and pion-scattering angle. Theoretical predictions to date cannot explain the large cross sections except at backward angles, showing that additional components must be added to the model.

  10. A Rugged, Wireless, Throwable Raspberry Pi (Invited)

    NASA Astrophysics Data System (ADS)

    Zimmerman, D. S.

    2013-12-01

    The rise of low cost computing hardware like the Raspberry Pi complete with SPI and I2C digital interfaces makes computer data acquisition at modest rates an easy task of wiring together a few simple modules and using some straighforward code. WiFi and battery power allow wireless acquisition and even near-real-time wireless data display for experiments where cabling is a problem, like remote monitoring, rotating experiments, or moving platforms. I will present a simple example of a wireless, battery powered, ruggedized Raspberry Pi system with analog acquisition. For the purposes of this session it will be in a toss-able shock-proof enclosure and connected to an accelerometer.

  11. The PI-Mode of Project Management

    NASA Technical Reports Server (NTRS)

    Isaac, Dan

    1997-01-01

    The PI-Mode is NASA's new approach to project management. It responds to the Agency's new policy to develop scientific missions that deliver the highest quality science for a fixed cost. It also attempts to provide more research opportunities by reducing project development times and increasing the number of launches per year. In order to accomplish this, the Principal Investigator is placed at the helm of the project with full responsibility over all aspects of the mission, including instrument and spacecraft development, as well as mission operations and data analysis. This paper intends to study the PI-Mode to determine the strengths and weaknesses of such a new project management technique. It also presents an analysis of its possible impact on the scientific community and its relations with industry, NASA, and other institutions.

  12. The Diogene 4 pi detector at Saturne

    NASA Technical Reports Server (NTRS)

    Alard, J. P.; Arnold, J.; Augerat, J.; Babinet, R.; Bastid, N.; Brochard, F.; Costilhes, J. P.; Crouau, M.; De Marco, N.; Drouet, M.; Dupieux, P.; Fanet, H.; Fodor, Z.; Fraysse, L.; Girard, J.; Gorodetzky, P.; Gosset, J.; Laspalles, C.; Lemaire, M. C.; L'Hote, D.; Lucas, B.; Montarou, G.; Papineau, A.; Parizet, M. J.; Schimmerling, W.

    1987-01-01

    Diogene, an electronic 4 pi detector, has been built and installed at the Saturne synchrotron in Saclay. The forward angular range (0 degree-6 degrees) is covered by 48 time-of-flight scintillator telescopes that provide charge identification. The trajectories of fragments emitted at larger angles are recorded in a cylindrical 0.4-m3 Pictorial Drift Chamber (PDC) surrounding the target. The PDC is inside a 1-T magnetic field; the axis of the PDC cylinder and the magnetic field are parallel to the beam. Good identification has been obtained for both positive and negative pi mesons and for hydrogen and helium isotopes. Multiplicities in relativistic nucleus-nucleus reactions up to 40 have been detected, limited mainly by the present electronics.

  13. Conserved piRNA Expression from a Distinct Set of piRNA Cluster Loci in Eutherian Mammals

    PubMed Central

    Zeng, Mei; Gerlach, Daniel; Yu, Michael; Berger, Bonnie; Naramura, Mayumi; Kile, Benjamin T.; Lau, Nelson C.

    2015-01-01

    The Piwi pathway is deeply conserved amongst animals because one of its essential functions is to repress transposons. However, many Piwi-interacting RNAs (piRNAs) do not base-pair to transposons and remain mysterious in their targeting function. The sheer number of piRNA cluster (piC) loci in animal genomes and infrequent piRNA sequence conservation also present challenges in determining which piC loci are most important for development. To address this question, we determined the piRNA expression patterns of piC loci across a wide phylogenetic spectrum of animals, and reveal that most genic and intergenic piC loci evolve rapidly in their capacity to generate piRNAs, regardless of known transposon silencing function. Surprisingly, we also uncovered a distinct set of piC loci with piRNA expression conserved deeply in Eutherian mammals. We name these loci Eutherian-Conserved piRNA cluster (ECpiC) loci. Supporting the hypothesis that conservation of piRNA expression across ~100 million years of Eutherian evolution implies function, we determined that one ECpiC locus generates abundant piRNAs antisense to the STOX1 transcript, a gene clinically associated with preeclampsia. Furthermore, we confirmed reduced piRNAs in existing mouse mutations at ECpiC-Asb1 and -Cbl, which also display spermatogenic defects. The Asb1 mutant testes with strongly reduced Asb1 piRNAs also exhibit up-regulated gene expression profiles. These data indicate ECpiC loci may be specially adapted to support Eutherian reproduction. PMID:26588211

  14. Conserved piRNA Expression from a Distinct Set of piRNA Cluster Loci in Eutherian Mammals.

    PubMed

    Chirn, Gung-Wei; Rahman, Reazur; Sytnikova, Yuliya A; Matts, Jessica A; Zeng, Mei; Gerlach, Daniel; Yu, Michael; Berger, Bonnie; Naramura, Mayumi; Kile, Benjamin T; Lau, Nelson C

    2015-11-01

    The Piwi pathway is deeply conserved amongst animals because one of its essential functions is to repress transposons. However, many Piwi-interacting RNAs (piRNAs) do not base-pair to transposons and remain mysterious in their targeting function. The sheer number of piRNA cluster (piC) loci in animal genomes and infrequent piRNA sequence conservation also present challenges in determining which piC loci are most important for development. To address this question, we determined the piRNA expression patterns of piC loci across a wide phylogenetic spectrum of animals, and reveal that most genic and intergenic piC loci evolve rapidly in their capacity to generate piRNAs, regardless of known transposon silencing function. Surprisingly, we also uncovered a distinct set of piC loci with piRNA expression conserved deeply in Eutherian mammals. We name these loci Eutherian-Conserved piRNA cluster (ECpiC) loci. Supporting the hypothesis that conservation of piRNA expression across ~100 million years of Eutherian evolution implies function, we determined that one ECpiC locus generates abundant piRNAs antisense to the STOX1 transcript, a gene clinically associated with preeclampsia. Furthermore, we confirmed reduced piRNAs in existing mouse mutations at ECpiC-Asb1 and -Cbl, which also display spermatogenic defects. The Asb1 mutant testes with strongly reduced Asb1 piRNAs also exhibit up-regulated gene expression profiles. These data indicate ECpiC loci may be specially adapted to support Eutherian reproduction.

  15. A Raspberry Pi-Based Attitude Sensor

    NASA Astrophysics Data System (ADS)

    Sreejith, A. G.; Mathew, Joice; Sarpotdar, Mayuresh; Mohan, Rekhesh; Nayak, Akshata; Safonova, Margarita; Murthy, Jayant

    We have developed a lightweight low-cost attitude sensor, based on a Raspberry Pi, built with readily available commercial components. It can be used in experiments where weight and power are constrained, such as in high-altitude lightweight balloon flights. This attitude sensor will be used as a major building block in a closed-loop control system with driver motors to stabilize and point cameras and telescopes for astronomical observations from a balloon-borne payload.

  16. Resonances in pi-K scattering

    SciTech Connect

    Wilson, David J.

    2014-06-23

    We have obtained clear signals of resonances in coupled-channel pi K - eta K scattering. Using distillation and a large basis of operators we are able to extract a precise spectrum of energy levels using the variational method. These energies are analysed using inelastic extensions of the Luescher method to obtain scattering amplitudes that clearly describe S, P and D wave resonances, corresponding to the physical K_0^*(1430), the K^*(892) and the K_2^*(1430).

  17. Intracomplex {pi}-{pi} stacking interaction between adjacent phenanthroline molecules in complexes with rare-earth nitrates: Crystal and molecular structures of bis(1,10-Phenanthroline)trinitratoytterbium and bis(1,10-Phenanthroline)trinitratolanthanum

    SciTech Connect

    Sadikov, G. G. Antsyshkina, A. S.; Rodnikova, M. N.; Solonina, I. A.

    2009-01-15

    Crystals of the compounds Yb(NO{sub 3}){sub 3}(Phen){sub 2} and La(NO{sub 3}){sub 3}(Phen){sub 2} (Phen = 1,10-phenanthroline) are investigated using X-ray diffraction. It is established that there exist two different crystalline modifications: the main modification (phase 1) is characteristic of all members of the isostructural series, and the second modification (phase 2) is observed only for the Eu, Er, and Yb elements. It is assumed that the stability and universality of main phase 1 are associated with the occurrence of the nonbonded {pi}-{pi} stacking interactions between the adjacent phenanthroline ligands in the complexes. The indication of the interactions is a distortion of the planar shape of the Phen molecule (the folding of the metallocycle along the N-N line with a folding angle of 11{sup o}-13{sup o} and its 'boomerang' distortion). The assumption regarding the {pi}-{pi} stacking interaction is very consistent with the shape of the ellipsoids of atomic thermal vibrations, as well as with the data obtained from thermography and IR spectroscopy. An analysis of the structures of a number of rare-earth compounds has demonstrated that the intracomplex {pi}-{pi} stacking interactions directly contribute to the formation of supramolecular associates in the crystals, such as molecular dimers, supramolecules, chain and layered ensembles, and framework systems.

  18. Close contacts between carbonyl oxygen atoms and aromatic centers in protein structures: pi...pi or lone-pair...pi interactions?

    PubMed

    Jain, Alok; Purohit, Chandra Shekhar; Verma, Sandeep; Sankararamakrishnan, Ramasubbu

    2007-08-01

    Lone-pair...pi and, more recently, pi...pi interactions have been studied in small molecule crystal structures, and they are the focus of attention in some biomolecules. In this study, we have systematically analyzed 500 high-resolution protein structures (resolution < or =1.8 A) and identified 286 examples in which carbonyl oxygen atoms approach the aromatic centers within a distance of 3.5 A. Contacts involving backbone carbonyl oxygens are frequently observed in helices and, to some extent, in strands. Geometrical characterization indicates that these contacts have geometry in between that of an ideal pi...pi and a lone-pair...pi interaction. Quantum mechanical calculations using 6-311++G** basis sets reveal that these contacts give rise to energetically favorable interactions and, along with MD simulations, indicate that such interactions could stabilize secondary structures.

  19. piRNA-guided slicing of transposon transcripts enforces their transcriptional silencing via specifying the nuclear piRNA repertoire

    PubMed Central

    Senti, Kirsten-André; Jurczak, Daniel; Sachidanandam, Ravi; Brennecke, Julius

    2015-01-01

    PIWI clade Argonaute proteins silence transposon expression in animal gonads. Their target specificity is defined by bound ∼23- to 30-nucleotide (nt) PIWI-interacting RNAs (piRNAs) that are processed from single-stranded precursor transcripts via two distinct pathways. Primary piRNAs are defined by the endonuclease Zucchini, while biogenesis of secondary piRNAs depends on piRNA-guided transcript cleavage and results in piRNA amplification. Here, we analyze the interdependencies between these piRNA biogenesis pathways in developing Drosophila ovaries. We show that secondary piRNA-guided target slicing is the predominant mechanism that specifies transcripts—including those from piRNA clusters—as primary piRNA precursors and defines the spectrum of Piwi-bound piRNAs in germline cells. Post-transcriptional silencing in the cytoplasm therefore enforces nuclear transcriptional target silencing, which ensures the tight suppression of transposons during oogenesis. As target slicing also defines the nuclear piRNA pool during mouse spermatogenesis, our findings uncover an unexpected conceptual similarity between the mouse and fly piRNA pathways. PMID:26302790

  20. piRNA-guided slicing of transposon transcripts enforces their transcriptional silencing via specifying the nuclear piRNA repertoire.

    PubMed

    Senti, Kirsten-André; Jurczak, Daniel; Sachidanandam, Ravi; Brennecke, Julius

    2015-08-15

    PIWI clade Argonaute proteins silence transposon expression in animal gonads. Their target specificity is defined by bound ∼23- to 30-nucleotide (nt) PIWI-interacting RNAs (piRNAs) that are processed from single-stranded precursor transcripts via two distinct pathways. Primary piRNAs are defined by the endonuclease Zucchini, while biogenesis of secondary piRNAs depends on piRNA-guided transcript cleavage and results in piRNA amplification. Here, we analyze the interdependencies between these piRNA biogenesis pathways in developing Drosophila ovaries. We show that secondary piRNA-guided target slicing is the predominant mechanism that specifies transcripts—including those from piRNA clusters—as primary piRNA precursors and defines the spectrum of Piwi-bound piRNAs in germline cells. Post-transcriptional silencing in the cytoplasm therefore enforces nuclear transcriptional target silencing, which ensures the tight suppression of transposons during oogenesis. As target slicing also defines the nuclear piRNA pool during mouse spermatogenesis, our findings uncover an unexpected conceptual similarity between the mouse and fly piRNA pathways. PMID:26302790

  1. Structure of the K{sup {pi}=}4{sup +} bands in {sup 186,188}Os

    SciTech Connect

    Phillips, A. A.; Garrett, P. E.; Demand, G. A.; Finlay, P.; Green, K. L.; Leach, K. G.; Schumaker, M. A.; Svensson, C. E.; Wong, J.; Lo Iudice, N.; Sushkov, A. V.; Bettermann, L.; Braun, N.; Burke, D. G.; Faestermann, T.; Kruecken, R.; Wirth, H.-F.; Hertenberger, R.

    2010-09-15

    The ({sup 3}He, d) single-proton stripping reaction has been performed on targets of {sup 185,187}Re to investigate the structures of the 4{sub 3}{sup +} states in {sup 186,188}Os. The experiment employed 30 MeV {sup 3}He beams, and the reaction products were analyzed with a Q3D spectrograph. Absolute cross sections were determined at nine angles between 5 deg. and 50 deg. for states up to approximately 3 MeV in excitation energy. Large (5/2){sup +}[402]{sub {pi}+}(3/2){sup +}[402]{sub {pi}}two-quasiparticle components are deduced for the 4{sub 3}{sup +} levels of both isotopes. Their magnitudes are in agreement with calculations performed using the quasiparticle phonon model, which predicts a coexistence of a large hexadecapole with a smaller, but sizable, {gamma}-{gamma} component in the 4{sub 3}{sup +}.

  2. Nitrogen-Doping Enables Covalent-Like pi-pi Bonding between Graphenes

    SciTech Connect

    Tian, Yong-Hui; Huang, Jingsong; Sumpter, Bobby G; Kertesz, Prof. Miklos

    2015-01-01

    The neighboring layers in bi-layer (and few-layer) graphenes of both AA and AB stacking motifs are known to be separated at a distance corresponding to van der Waals (vdW) interactions. In this Letter, we present for the first time a new aspect of graphene chemistry in terms of a special chemical bonding between the giant graphene molecules . Through rigorous theoretical calculations, we demonstrate that the N-doped graphenes (NGPs) with various doping levels can form an unusual two-dimensional (2D) pi pi bonding in bi-layer NGPs bringing the neighboring NGPs to significantly reduced interlayer separations. The interlayer binding energies can be enhanced by up to 50% compared to the pristine graphene bi-layers that are characterized by only vdW interactions. Such an unusual chemical bonding arises from the pi pi overlap across the vdW gap while the individual layers maintain their in-plane pi-conjugation and are accordingly planar. The existence of the resulting interlayer covalent-like bonding is corroborated by electronic structure calculations and crystal orbital overlap population (COOP) analyses. In NGP-based graphite with the optimal doping level, the NGP layers are uniformly stacked and the 3D bulk exhibits metallic characteristics both in the in-plane and along the stacking directions.

  3. Improved Measurements of Neutral B Decay Branching Fractions to K0s pi+ pi- and the Charge Asymmetry of B0 -> K*+ pi-

    SciTech Connect

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, A.; Pappagallo, M.; Pompili, A.; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /Pisa U. /Pisa, Scuola Normale Superiore /INFN, Pisa /Prairie View A-M /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Vanderbilt U. /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U.

    2005-08-26

    The authors analyze the decay B{sup 0} {yields} K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} using a sample of 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. A maximum likelihood fit finds the following branching fractions: {Beta}(B{sup 0} {yields} K{sup 0}{pi}{sup +}{pi}{sup -}) = (43.0 {+-} 2.3 {+-} 2.3) x 10{sup -6}, {Beta}(B{sup 0} {yields} f{sub 0}({yields} {pi}{sup +}{pi}{sup -})K{sup 0}) = (5.5 {+-} 0.7 {+-} 0.5 {+-} 0.3) x 10{sup -6} and {Beta}(B{sup 0} {yields} K*{sup +}{pi}{sup -}) = (11.0 {+-} 1.5 {+-} 0.5 {+-} 0.5) x 10{sup -6}. For these results, the first uncertainty is statistical, the second is systematic, and the third (if present) is due to the effect of interference from other resonances. They also measure the CP-violating charge asymmetry in the decay B{sup 0} {yields} K*{sup +}{pi}{sup -}, {Alpha}{sub K*{pi}} = -0.11 {+-} 0.14 {+-} 0.05.

  4. Direct detection of CH/pi interactions in proteins.

    PubMed

    Plevin, Michael J; Bryce, David L; Boisbouvier, Jérôme

    2010-06-01

    XH/pi interactions make important contributions to biomolecular structure and function. These weakly polar interactions, involving pi-system acceptor groups, are usually identified from the three-dimensional structures of proteins. Here, nuclear magnetic resonance spectroscopy has been used to directly detect methyl/pi (Me/pi) interactions in proteins at atomic resolution. Density functional theory calculations predict the existence of weak scalar (J) couplings between nuclei involved in Me/pi interactions. Using an optimized isotope-labelling strategy, these J couplings have been detected in proteins using nuclear magnetic resonance spectroscopy. The resulting spectra provide direct experimental evidence of Me/pi interactions in proteins and allow a simple and unambiguous assignment of donor and acceptor groups. The use of nuclear magnetic resonance spectroscopy is an elegant way to identify and experimentally characterize Me/pi interactions in proteins without the need for arbitrary geometric descriptions or pre-existing three-dimensional structures. PMID:20489715

  5. 4th Annual DOE-ERSP PI Meeting: Abstracts

    SciTech Connect

    Hazen, Terry C.

    2009-03-01

    This contains abstracts from the 2009 Annual Environmental Remediation Sciences Program (ERSP) Principal Investigators (PI) Meeting. The ERSP seeks to advance fundamental science to understand, predict, and mitigate the impacts of environmental contamination from past nuclear weapons production and provide a scientific basis for the long-term stewardship of nuclear waste disposal. These ambitious goals cannot be achieved by any one project alone. Therefore, ERSP funds a combination of research programs at the DOE national laboratories, individual projects at universities and federal agencies, and large long(er)-term field site research. Integration of these activities to advance the ERSP goals is a constant challenge, but made significantly simpler by bringing together all funded ERSP researchers once a year to discuss the very latest research results. It is at these meetings where new ideas and/or scientific advancements in support of ERSP goals can be discussed and openly debated among all PIs in the program. The ERSP thrives, in part, on the new ideas, concepts, scientific connections, and collaborations generated as a result of these meetings. The annual PI Meeting is very much a working meeting with three major goals: (1) to provide opportunities for scientific interaction among the ERSP scientists, a critical element for the program; (2) to provide the ERSP program staff with an opportunity to evaluate the progress of each program and project; and (3) to showcase the ERSP to interested parties within DOE and within other federal agencies In addition to program managers from within OBER, there will be representatives from other offices within DOE and other federal agencies in attandance at the meeting.

  6. 32 CFR 78.7 - Standard agreement.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 32 National Defense 1 2010-07-01 2010-07-01 false Standard agreement. 78.7 Section 78.7 National... VOLUNTARY STATE TAX WITHHOLDING FROM RETIRED PAY § 78.7 Standard agreement. Standard Agreement For Voluntary..., hereafter referred to as the “Standard Agreement,” establishes administrative procedures and...

  7. 48 CFR 3416.702 - Basic agreements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Basic agreements. 3416.702... CONTRACTING METHODS AND CONTRACT TYPES TYPES OF CONTRACTS Agreements 3416.702 Basic agreements. (a)-(d) (e) Negotiated overhead rates. Basic agreements may include negotiated overhead rates for...

  8. 78 FR 26779 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-08

    ... reflects the suspension of the agreement, effective May 1, 2013 through April 14, 2015. Agreement No... the fact that the parties have agreed to charter and rationalize vessel space among themselves and...). Agreement No.: 012206. Title: Industria Armamento Meridionale S.P.A./K-Line Space Charter Agreement....

  9. 2 CFR 182.620 - Cooperative agreement.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... agreement. Cooperative agreement means an award of financial assistance that, consistent with 31 U.S.C. 6305... development agreements as defined in 15 U.S.C. 3710a. ... MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY...

  10. 5 CFR 2421.20 - Election agreement.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 3 2010-01-01 2010-01-01 false Election agreement. 2421.20 Section 2421... Election agreement. Election agreement means an agreement under part 2422 of this subchapter signed by all... representation election in an appropriate unit....

  11. 5 CFR 2421.20 - Election agreement.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 3 2012-01-01 2012-01-01 false Election agreement. 2421.20 Section 2421... Election agreement. Election agreement means an agreement under part 2422 of this subchapter signed by all... representation election in an appropriate unit....

  12. 5 CFR 2421.20 - Election agreement.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 3 2011-01-01 2011-01-01 false Election agreement. 2421.20 Section 2421... Election agreement. Election agreement means an agreement under part 2422 of this subchapter signed by all... representation election in an appropriate unit....

  13. 5 CFR 2421.20 - Election agreement.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 3 2014-01-01 2014-01-01 false Election agreement. 2421.20 Section 2421... Election agreement. Election agreement means an agreement under part 2422 of this subchapter signed by all... representation election in an appropriate unit....

  14. 5 CFR 2421.20 - Election agreement.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 3 2013-01-01 2013-01-01 false Election agreement. 2421.20 Section 2421... Election agreement. Election agreement means an agreement under part 2422 of this subchapter signed by all... representation election in an appropriate unit....

  15. 7 CFR 1948.98 - Grant agreements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 13 2013-01-01 2013-01-01 false Grant agreements. 1948.98 Section 1948.98 Agriculture... § 1948.98 Grant agreements. The following Grant Agreements are a part of this regulation. (a) Exhibit A of this subpart is a Grant Agreement for Growth Management and Housing Planning Grants for...

  16. 7 CFR 1948.98 - Grant agreements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 13 2011-01-01 2009-01-01 true Grant agreements. 1948.98 Section 1948.98 Agriculture... § 1948.98 Grant agreements. The following Grant Agreements are a part of this regulation. (a) Exhibit A of this subpart is a Grant Agreement for Growth Management and Housing Planning Grants for...

  17. 7 CFR 1415.11 - Restoration agreements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Restoration agreements. 1415.11 Section 1415.11... Restoration agreements. (a) Restoration agreements are only authorized to be used in conjunction with... a restoration agreement is needed. Such a determination is also subject to the availability...

  18. 7 CFR 1415.11 - Restoration agreements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 10 2011-01-01 2011-01-01 false Restoration agreements. 1415.11 Section 1415.11... Restoration agreements. (a) Restoration agreements are only authorized to be used in conjunction with... a restoration agreement is needed. Such a determination is also subject to the availability...

  19. 7 CFR 947.111 - Marketing agreement.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 8 2010-01-01 2010-01-01 false Marketing agreement. 947.111 Section 947.111 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing... Definitions § 947.111 Marketing agreement. Marketing agreement means Marketing Agreement No. 114, as amended....

  20. 7 CFR 947.111 - Marketing agreement.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 8 2011-01-01 2011-01-01 false Marketing agreement. 947.111 Section 947.111 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing... Definitions § 947.111 Marketing agreement. Marketing agreement means Marketing Agreement No. 114, as amended....

  1. 46 CFR 356.41 - Management agreements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 8 2010-10-01 2010-10-01 false Management agreements. 356.41 Section 356.41 Shipping..., Management Agreements and Exclusive or Long-Term Contracts § 356.41 Management agreements. (a) An owner or bareboat charterer of a Fishing Industry Vessel may enter into a management agreement with a Non-Citizen...

  2. 25 CFR 163.71 - Agreement funding.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false Agreement funding. 163.71 Section 163.71 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GENERAL FORESTRY REGULATIONS Cooperative Agreements § 163.71 Agreement funding. In cooperative agreements, the Secretary is authorized to advance...

  3. 25 CFR 163.71 - Agreement funding.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false Agreement funding. 163.71 Section 163.71 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GENERAL FORESTRY REGULATIONS Cooperative Agreements § 163.71 Agreement funding. In cooperative agreements, the Secretary is authorized to advance...

  4. 25 CFR 163.71 - Agreement funding.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false Agreement funding. 163.71 Section 163.71 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GENERAL FORESTRY REGULATIONS Cooperative Agreements § 163.71 Agreement funding. In cooperative agreements, the Secretary is authorized to advance...

  5. 25 CFR 163.71 - Agreement funding.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false Agreement funding. 163.71 Section 163.71 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GENERAL FORESTRY REGULATIONS Cooperative Agreements § 163.71 Agreement funding. In cooperative agreements, the Secretary is authorized to advance...

  6. 25 CFR 163.71 - Agreement funding.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true Agreement funding. 163.71 Section 163.71 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GENERAL FORESTRY REGULATIONS Cooperative Agreements § 163.71 Agreement funding. In cooperative agreements, the Secretary is authorized to advance...

  7. 77 FR 10743 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-23

    ... . Agreement No.: 011353-036. Title: The Credit Agreement. Parties: Crowley Latin America Services, LLC; Dole..., DC 20006-4007. Synopsis: The amendment deletes Crowley Latin American Services, LLC and a King Ocean entity as a party to the Agreement. Agreement No.: 012155. Title: MSC/Zim South America East Coast...

  8. 7 CFR 947.111 - Marketing agreement.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 8 2013-01-01 2013-01-01 false Marketing agreement. 947.111 Section 947.111 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING... Definitions § 947.111 Marketing agreement. Marketing agreement means Marketing Agreement No. 114, as amended....

  9. 7 CFR 947.111 - Marketing agreement.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 8 2014-01-01 2014-01-01 false Marketing agreement. 947.111 Section 947.111 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING... Definitions § 947.111 Marketing agreement. Marketing agreement means Marketing Agreement No. 114, as amended....

  10. 7 CFR 947.111 - Marketing agreement.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 8 2012-01-01 2012-01-01 false Marketing agreement. 947.111 Section 947.111 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Marketing... Definitions § 947.111 Marketing agreement. Marketing agreement means Marketing Agreement No. 114, as amended....

  11. 27 CFR 70.485 - Closing agreements.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2012-04-01 2011-04-01 true Closing agreements. 70.485... Relating to Alcohol, Tobacco, Firearms, and Explosives Administrative Remedies § 70.485 Closing agreements... taxable period ending prior or subsequent to the date of such agreement. A closing agreement may...

  12. 27 CFR 70.485 - Closing agreements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2013-04-01 2013-04-01 false Closing agreements. 70.485... Relating to Alcohol, Tobacco, Firearms, and Explosives Administrative Remedies § 70.485 Closing agreements... taxable period ending prior or subsequent to the date of such agreement. A closing agreement may...

  13. 27 CFR 70.485 - Closing agreements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Closing agreements. 70.485... Relating to Alcohol, Tobacco, Firearms, and Explosives Administrative Remedies § 70.485 Closing agreements... taxable period ending prior or subsequent to the date of such agreement. A closing agreement may...

  14. 27 CFR 70.485 - Closing agreements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2011-04-01 2011-04-01 false Closing agreements. 70.485... Relating to Alcohol, Tobacco, Firearms, and Explosives Administrative Remedies § 70.485 Closing agreements... taxable period ending prior or subsequent to the date of such agreement. A closing agreement may...

  15. 27 CFR 70.485 - Closing agreements.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2014-04-01 2014-04-01 false Closing agreements. 70.485... Relating to Alcohol, Tobacco, Firearms, and Explosives Administrative Remedies § 70.485 Closing agreements... taxable period ending prior or subsequent to the date of such agreement. A closing agreement may...

  16. 40 CFR 46.170 - Fellowship agreement.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 1 2011-07-01 2011-07-01 false Fellowship agreement. 46.170 Section 46... FELLOWSHIPS Award § 46.170 Fellowship agreement. (a) The “Fellowship Agreement” (EPA Form 5770-8) is the written agreement, including amendments, between EPA and you. The fellowship agreement will state...

  17. 40 CFR 46.170 - Fellowship agreement.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 1 2012-07-01 2012-07-01 false Fellowship agreement. 46.170 Section 46... FELLOWSHIPS Award § 46.170 Fellowship agreement. (a) The “Fellowship Agreement” (EPA Form 5770-8) is the written agreement, including amendments, between EPA and you. The fellowship agreement will state...

  18. 40 CFR 46.170 - Fellowship agreement.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 1 2013-07-01 2013-07-01 false Fellowship agreement. 46.170 Section 46... FELLOWSHIPS Award § 46.170 Fellowship agreement. (a) The “Fellowship Agreement” (EPA Form 5770-8) is the written agreement, including amendments, between EPA and you. The fellowship agreement will state...

  19. 40 CFR 46.170 - Fellowship agreement.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 1 2014-07-01 2014-07-01 false Fellowship agreement. 46.170 Section 46... FELLOWSHIPS Award § 46.170 Fellowship agreement. (a) The “Fellowship Agreement” (EPA Form 5770-8) is the written agreement, including amendments, between EPA and you. The fellowship agreement will state...

  20. 40 CFR 46.170 - Fellowship agreement.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 1 2010-07-01 2010-07-01 false Fellowship agreement. 46.170 Section 46... FELLOWSHIPS Award § 46.170 Fellowship agreement. (a) The “Fellowship Agreement” (EPA Form 5770-8) is the written agreement, including amendments, between EPA and you. The fellowship agreement will state...

  1. Detection of piRNAs in whitespotted bamboo shark liver.

    PubMed

    Yang, Lingrong; Ge, Yinghua; Cheng, Dandan; Nie, Zuoming; Lv, Zhengbing

    2016-09-15

    Piwi-interacting RNAs (piRNAs) are 26 to 31-nt small non-coding RNAs that have been reported mostly in germ-line cells and cancer cells. However, the presence of piRNAs in the whitespotted bamboo shark liver has not yet been reported. In a previous study of microRNAs in shark liver, some piRNAs were detected from small RNAs sequenced by Solexa technology. A total of 4857 piRNAs were predicted and found in shark liver. We further selected 17 piRNAs with high and significantly differential expression between normal and regenerative liver tissues for subsequent verification by Northern blotting. Ten piRNAs were further identified, and six of these were matched to known piRNAs in piRNABank. The actual expression of six known and four novel piRNAs was validated by qRT-PCR. In addition, a total of 401 target genes of the 10 piRNAs were predicted by miRanda. Through GO and pathway function analyses, only five piRNAs could be annotated with eighteen GO annotations. The results indicated that the identified piRNAs are involved in many important biological responses, including immune inflammation, cell-specific differentiation and development, and angiogenesis. This manuscript provides the first identification of piRNAs in the liver of whitespotted bamboo shark using Solexa technology as well as further elucidation of the regulatory role of piRNAs in whitespotted bamboo shark liver. These findings may provide a useful resource and may facilitate the development of therapeutic strategies against liver damage. PMID:27267405

  2. Coincidence measurements of the (. pi. /sup +/,. pi. /sup 0/p) reaction in the /triangle/-resonance region

    SciTech Connect

    Hoeibraten, S.

    1989-05-01

    This thesis describes an experimental study of the (..pi../sup +/, ..pi../sup 0/p) reaction at incident energy T/sub ..pi../sup +// = 165 MeV. This work is part of the first experiment to detect neutral pions and protons in coincidence in kinematically complete measurements. The reaction was studied on /sup 16/O (using water targets) at several pion angles: theta/sub ..pi../sup 0// = 70/degree/, 80/degree/, 110/degree/, and 130/degree/. At theta/sub ..pi../sup 0// = 110/degree/ measurements were also made on /sup 56/Fe, /sup 120/Sn, and /sup 208/Pb. The neutral pions were detected with the LAMPF ..pi../sup 0/ spectrometer, while the protons were detected in a vertical array of plastic-scintillator ..delta..E-E telescopes, each spanning 8.5 msr. Energy spectra of the differential cross sections d/sup 4/sigma/dE/sub ..pi../sup 0// dE/sub p/d..cap omega../sub ..pi../sup 0//d..cap omega../sub p/ were obtained for each proton telescope and subsequently integrated over proton and pion energy and proton angle. The characteristics of these spectra are consistent with a quasi-free description of the (..pi../sup +/,..pi../sup 0/p) reaction. The angular dependence of dsigma/d..cap omega../sub ..pi../sup 0//(theta/sub ..pi../sup 0//) for /sup 16/O(..pi../sup +/,..pi../sup 0/p) was found to be in accordance with that of the cross section for the corresponding free reaction at backward ..pi../sup 0/ angles. For the /sup 16/O(..pi../sup +/,..pi../sup 0/p) reaction, events in which a p-shell nucleon had been removed were identified. The p-shell events were found to constitute only 40--50% of the total cross section for quasi-free one-nucleon removal. The (..pi../sup +/,..pi../sup 0/p) cross section at theta/sub ..pi../sup 0// = 110/degree/ proved to be almost the same for all target nuclei, possibly slightly decreasing as a function of A. 102 refs., 108 figs., 24 tabs.

  3. Theoretical characterization of the 5Pi and 3Pi potential energy surfaces for NH + O yields N + OH

    NASA Technical Reports Server (NTRS)

    Walch, Stephen P.

    1990-01-01

    The reactant, product, and saddle point regions of the 5Pi and 3Pi potential energy surfaces for the reaction NH + O yields N + OH have been characterized using complete active space self consistent field/externally contracted configuration interaction calculations with large atomic natural orbital basis sets. The computed barrier heights are 5.6 and 11.7 kcal/mol on the 5Pi and 3Pi surfaces, respectively. Transition state theory with an Eckart tunneling correction is used to estimate the rate constant on the 5Pi surface.

  4. Precise determination of the I=2 {pi}{pi} scattering length from mixed-action lattice QCD

    SciTech Connect

    Beane, Silas R.; Torok, Aaron; Luu, Thomas C.; Orginos, Kostas; Parreno, Assumpta; Savage, Martin J.; Walker-Loud, Andre

    2008-01-01

    The I=2 {pi}{pi} scattering length is calculated in fully dynamical lattice QCD with domain-wall valence quarks on the asqtad-improved coarse MILC configurations (with fourth-rooted staggered sea quarks) at four light-quark masses. Two- and three-flavor mixed-action chiral perturbation theory at next-to-leading order is used to perform the chiral and continuum extrapolations. At the physical charged pion mass, we find m{sub {pi}}a{sub {pi}}{sub {pi}}{sup I=2}=-0.043 30{+-}0.000 42, where the error bar combines the statistical and systematic uncertainties in quadrature.

  5. International University Co-operation: Summary Record of a Working Party on International University Co-operation. Papers-9.

    ERIC Educational Resources Information Center

    International Association of Universities, Paris (France).

    This report delineates areas, patterns, effects, and purposes of international university cooperation. Areas of international university cooperation encompass teaching and study, research, university administration and organization. Patterns of cooperation include the basic principles of governing agreements, methods for full university…

  6. Search for B+ ->phi pi+ and B0->phi pi0 Decays

    SciTech Connect

    Aubert, B.; Barate, R.; Bona, M.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, A.; Pappagallo, M.; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; Eigen, G.; Ofte, I.; Stugu, B.; /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Karlsruhe U., EKP /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /Pisa U. /INFN, Pisa /Prairie View A-M /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Stony Brook /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U. /Clermont-Ferrand U. /Basilicata U., Potenza

    2006-05-24

    A search has been made for the decays B{sup +} {yields} {psi}{pi}{sup +} and B{sup 0} in a data sample of approximately 232 x 10{sup 6} B{bar B} pairs recorded at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. No significant signals have been observed, and therefore upper limits have been set on the branching fractions: {Beta}(B{sup +} {yields} {psi}{pi}{sup +}) < 2.4 x 10{sup -7} and {Beta}(B{sup 0} {yields} {psi}{pi}{sup 0}) < 2.8 x 10{sup -7} at 90% probability.

  7. Study of the Rare Hyperon Decay ${\\boldmath \\Omega^\\mp \\to \\Xi^\\mp \\: \\pi^+\\pi^-}$

    SciTech Connect

    Kamaev, O.; Solomey, N.; Burnstein, R.A.; Chakravorty, A.; CHen, Y.C.; Choong, W.S.; Clark, K.; Dukes, E.C.; Durandet, C.; Felix, J.; Fu, Y.; /Taiwan, Inst. Phys. /Fermilab /Guanajuato U. /Michigan U. /South Alabama U. /Virginia U.

    2010-07-27

    The authors report a new measurement of the decay {Omega}{sup -} {yields} {Xi}{sup -} {pi}{sup +}{pi}{sup -} with 76 events and a first observation of the decay {bar {Omega}}{sup +} {yields} {bar {Xi}}{sup +} {pi}{sup +}{pi}{sup -} with 24 events, yielding a combined branching ratio (3.74{sub -0.56}{sup +0.67}) x 10{sup -4}. This represents a factor 25 increase in statistics over the best previous measurement. No evidence is seen for CP violation, with {Beta}({Omega}{sup -} {yields} {Xi}{sup -} {pi}{sup +}{pi}{sup -}) = 4.04{sub -0.71}{sup +0.83} x 10{sup -4} and {Beta}({bar {Omega}}{sup +} {yields} {bar {Xi}}{sup +} {pi}{sup +}{pi}{sup -}) = 3.15{sub -0.89}{sup +1.12} x 10{sup -4}. Contrary to theoretical expectation, they see little evidence for the decays {Omega}{sup -} {yields} {Xi}*{sub 1530}{sup 0} {pi}{sup -} and {bar {Omega}}{sup +} {yields} {bar {Xi}}*{sub 1530}{sup 0} {pi}{sup +} and place a 90% C.L. upper limit on the combined branching ratio {Beta}({Omega}{sup -}({bar {Omega}}{sup +}) {yields} {Xi}*{sub 1530}{sup 0} ({bar {Xi}}*{sub 1530}{sup 0}){pi}{sup {-+}}) < 7.0 x 10{sup -5}.

  8. Amplitude Analysis of the Decay B0->K+pi-pi0

    SciTech Connect

    Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Lopez, L.; Palano, Antimo; Pappagallo, M.; Eigen, G.; Stugu, Bjarne; Sun, L.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Cahn, Robert N.; Jacobsen, R.G.; /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Consorzio Milano Ricerche /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Napoli Seconda U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Banca di Roma /Frascati /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2008-09-03

    We report an updated amplitude analysis of the charmless hadronic decays of neutral B mesons to K{sup +} {pi}{sup -}{pi}{sup 0}. With a sample of 454 million {Upsilon}(4S) {yields} B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B{sup 0} and B{sup 0} decays and determine the corresponding CP-averaged fit fractions and charge asymmetries.

  9. Improved measurements of CP-violating asymmetry amplitudes in B0-->pi+pi- decays.

    PubMed

    Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, J P; Poireau, V; Tisserand, V; Zghiche, A; Grauges-Pous, E; Palano, A; Pompili, A; Chen, J C; Qi, N D; Rong, G; Wang, P; Zhu, Y S; Eigen, G; Ofte, I; Stugu, B; Abrams, G S; Borgland, A W; Breon, A B; Brown, D N; Button-Shafer, J; Cahn, R N; Charles, E; Day, C T; Gill, M S; Gritsan, A V; Groysman, Y; Jacobsen, R G; Kadel, R W; Kadyk, J; Kerth, L T; Kolomensky, Yu G; Kukartsev, G; Lynch, G; Mir, L M; Oddone, P J; Orimoto, T J; Pripstein, M; Roe, N A; Ronan, M T; Wenzel, W A; Barrett, M; Ford, K E; Harrison, T J; Hart, A J; Hawkes, C M; Morgan, S E; Watson, A T; Fritsch, M; Goetzen, K; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Peters, K; Schroeder, T; Steinke, M; Boyd, J T; Burke, J P; Chevalier, N; Cottingham, W N; Kelly, M P; Latham, T E; Wilson, F F; Cuhadar-Donszelmann, T; Hearty, C; Knecht, N S; Mattison, T S; McKenna, J A; Thiessen, D; Khan, A; Kyberd, P; Teodorescu, L; Blinov, A E; Blinov, V E; Druzhinin, V P; Golubev, V B; Ivanchenko, V N; Kravchenko, E A; Onuchin, A P; Serednyakov, S I; Skovpen, Yu I; Solodov, E P; Yushkov, A N; Best, D; Bruinsma, M; Chao, M; Eschrich, I; Kirkby, D; Lankford, A J; Mandelkern, M; Mommsen, R K; Roethel, W; Stoker, D P; Buchanan, C; Hartfiel, B L; Weinstein, A J R; Foulkes, S D; Gary, J W; Long, O; Shen, B C; Wang, K; Del Re, D; Hadavand, H K; Hill, E J; Macfarlane, D B; Paar, H P; Rahatlou, Sh; Sharma, V; Berryhill, J W; Campagnari, C; Cunha, A; Dahmes, B; Hong, T M; Lu, A; Mazur, M A; Richman, J D; Verkerke, W; Beck, T W; Eisner, A M; Flacco, C J; Heusch, C A; Kroseberg, J; Lockman, W S; Nesom, G; Schalk, T; Schumm, B A; Seiden, A; Spradlin, P; Williams, D C; Wilson, M G; Albert, J; Chen, E; Dubois-Felsmann, G P; Dvoretskii, A; Hitlin, D G; Narsky, I; Piatenko, T; Porter, F C; Ryd, A; Samuel, A; Yang, S; Jayatilleke, S; Mancinelli, G; Meadows, B T; Sokoloff, M D; Blanc, F; Bloom, P; Chen, S; Ford, W T; Nauenberg, U; Olivas, A; Rankin, P; Ruddick, W O; Smith, J G; Ulmer, K A; Zhang, J; Zhang, L; Chen, A; Eckhart, E A; Harton, J L; Soffer, A; Toki, W H; Wilson, R J; Zeng, Q; Spaan, B; Altenburg, D; Brandt, T; Brose, J; Dickopp, M; Feltresi, E; Hauke, A; Lacker, H M; Maly, E; Nogowski, R; Otto, S; Petzold, A; Schott, G; Schubert, J; Schubert, K R; Schwierz, R; Sundermann, J E; Bernard, D; Bonneaud, G R; Grenier, P; Schrenk, S; Thiebaux, Ch; Vasileiadis, G; Verderi, M; Bard, D J; Clark, P J; Muheim, F; Playfer, S; Xie, Y; Andreotti, M; Azzolini, V; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Luppi, E; Negrini, M; Piemontese, L; Sarti, A; Anulli, F; Baldini-Ferroli, R; Calcaterra, A; de Sangro, R; Finocchiaro, G; Patteri, P; Peruzzi, I M; Piccolo, M; Zallo, A; Buzzo, A; Capra, R; Contri, R; Crosetti, G; Lo Vetere, M; Macri, M; Monge, M R; Passaggio, S; Patrignani, C; Robutti, E; Santroni, A; Tosi, S; Bailey, S; Brandenburg, G; Chaisanguanthum, K S; Morii, M; Won, E; Dubitzky, R S; Langenegger, U; Marks, J; Uwer, U; Bhimji, W; Bowerman, D A; Dauncey, P D; Egede, U; Gaillard, J R; Morton, G W; Nash, J A; Nikolich, M B; Taylor, G P; Charles, M J; Grenier, G J; Mallik, U; Mohapatra, A K; Cochran, J; Crawley, H B; Lamsa, J; Meyer, W T; Prell, S; Rosenberg, E I; Rubin, A E; Yi, J; Arnaud, N; Davier, M; Giroux, X; Grosdidier, G; Höcker, A; Le Diberder, F; Lepeltier, V; Lutz, A M; Petersen, T C; Pierini, M; Plaszczynski, S; Schune, M H; Wormser, G; Cheng, C H; Lange, D J; Simani, M C; Wright, D M; Bevan, A J; Chavez, C A; Coleman, J P; Forster, I J; Fry, J R; Gabathuler, E; Gamet, R; Hutchcroft, D E; Parry, R J; Payne, D J; Touramanis, C; Cormack, C M; Di Lodovico, F; Brown, C L; Cowan, G; Flack, R L; Flaecher, H U; Green, M G; Jackson, P S; McMahon, T R; Ricciardi, S; Salvatore, F; Winter, M A; Brown, D; Davis, C L; Allison, J; Barlow, N R; Barlow, R J; Hodgkinson, M C; Lafferty, G D; Naisbit, M T; Williams, J C; Chen, C; Farbin, A; Hulsbergen, W D; Jawahery, A; Kovalskyi, D; Lae, C K; Lillard, V; Roberts, D A; Blaylock, G; Dallapiccola, C; Hertzbach, S S; Kofler, R; Koptchev, V B; Moore, T B; Saremi, S; Staengle, H; Willocq, S; Cowan, R; Koeneke, K; Sciolla, G; Sekula, S J; Taylor, F; Yamamoto, R K; Patel, P M; Robertson, S H; Lazzaro, A; Lombardo, V; Palombo, F; Bauer, J M; Cremaldi, L; Eschenburg, V; Godang, R; Kroeger, R; Reidy, J; Sanders, D A; Summers, D J; Zhao, H W; Brunet, S; Côté, D; Taras, P; Nicholson, H; Cavallo, N; Fabozzi, F; Gatto, C; Lista, L; Monorchio, D; Paolucci, P; Piccolo, D; Sciacca, C; Baak, M; Bulten, H; Raven, G; Snoek, H L; Wilden, L; Jessop, C P; Losecco, J M; Allmendinger, T; Benelli, G; Gan, K K; Honscheid, K; Hufnagel, D; Kagan, H; Kass, R; Pulliam, T; Rahimi, A M; Ter-Antonyan, R; Wong, Q K; Brau, J; Frey, R; Igonkina, O; Lu, M; Potter, C T; Sinev, N B; Strom, D; Torrence, E; Colecchia, F; Dorigo, A; Galeazzi, F; Margoni, M; Morandin, M; Posocco, M; Rotondo, M; Simonetto, F; Stroili, R; Voci, C; Benayoun, M; Briand, H; Chauveau, J; David, P; Del Buono, L; de la Vaissière, Ch; Hamon, O; John, M J J; Leruste, Ph; Malclès, J; Ocariz, J; Roos, L; Therin, G; Behera, P K; Gladney, L; Guo, Q H; Panetta, J; Biasini, M; Covarelli, R; Pioppi, M; Angelini, C; Batignani, G; Bettarini, S; Bondioli, M; Bucci, F; Calderini, G; Carpinelli, M; Forti, F; Giorgi, M A; Lusiani, A; Marchiori, G; Morganti, M; Neri, N; Paoloni, E; Rama, M; Rizzo, G; Simi, G; Walsh, J; Haire, M; Judd, D; Paick, K; Wagoner, D E; Danielson, N; Elmer, P; Lau, Y P; Lu, C; Miftakov, V; Olsen, J; Smith, A J S; Telnov, A V; Bellini, F; Cavoto, G; D'Orazio, A; Di Marco, E; Faccini, R; Ferrarotto, F; Ferroni, F; Gaspero, M; Li Gioi, L; Mazzoni, M A; Morganti, S; Piredda, G; Polci, F; Tehrani, F Safai; Voena, C; Christ, S; Schröder, H; Wagner, G; Waldi, R; Adye, T; De Groot, N; Franek, B; Gopal, G P; Olaiya, E O; Aleksan, R; Emery, S; Gaidot, A; Ganzhur, S F; Giraud, P-F; Hamel de Monchenault, G; Kozanecki, W; Legendre, M; London, G W; Mayer, B; Vasseur, G; Yèche, Ch; Zito, M; Purohit, M V; Weidemann, A W; Wilson, J R; Yumiceva, F X; Abe, T; Aston, D; Bartoldus, R; Berger, N; Boyarski, A M; Buchmueller, O L; Claus, R; Convery, M R; Cristinziani, M; De Nardo, G; Dingfelder, J C; Dong, D; Dorfan, J; Dujmic, D; Dunwoodie, W; Fan, S; Field, R C; Glanzman, T; Gowdy, S J; Hadig, T; Halyo, V; Hast, C; Hryn'ova, T; Innes, W R; Kelsey, M H; Kim, P; Kocian, M L; Leith, D W G S; Libby, J; Luitz, S; Luth, V; Lynch, H L; Marsiske, H; Messner, R; Muller, D R; O'grady, C P; Ozcan, V E; Perazzo, A; Perl, M; Ratcliff, B N; Roodman, A; Salnikov, A A; Schindler, R H; Schwiening, J; Snyder, A; Soha, A; Stelzer, J; Strube, J; Su, D; Sullivan, M K; Va'vra, J; Wagner, S R; Weaver, M; Wisniewski, W J; Wittgen, M; Wright, D H; Yarritu, A K; Young, C C; Burchat, P R; Edwards, A J; Majewski, S A; Petersen, B A; Roat, C; Ahmed, M; Ahmed, S; Alam, M S; Ernst, J A; Saeed, M A; Saleem, M; Wappler, F R; Bugg, W; Krishnamurthy, M; Spanier, S M; Eckmann, R; Kim, H; Ritchie, J L; Satpathy, A; Schwitters, R F; Izen, J M; Kitayama, I; Lou, X C; Ye, S; Bianchi, F; Bona, M; Gallo, F; Gamba, D; Bosisio, L; Cartaro, C; Cossutti, F; Della Ricca, G; Dittongo, S; Grancagnolo, S; Lanceri, L; Poropat, P; Vitale, L; Vuagnin, G; Martinez-Vidal, F; Panvini, R S; Banerjee, Sw; Bhuyan, B; Brown, C M; Fortin, D; Hamano, K; Jackson, P D; Kowalewski, R; Roney, J M; Sobie, R J; Back, J J; Harrison, P F; Mohanty, G B; Band, H R; Chen, X; Cheng, B; Dasu, S; Datta, M; Eichenbaum, A M; Flood, K T; Graham, M; Hollar, J J; Johnson, J R; Kutter, P E; Li, H; Liu, R; Mihalyi, A; Pan, Y; Prepost, R; Tan, P; von Wimmersperg-Toeller, J H; Wu, J; Wu, S L; Yu, Z; Greene, M G; Neal, H

    2005-10-01

    We present updated measurements of the CP-violating parameters Spipi and Cpipi in B0-->pi+pi- decays. Using a sample of 227x10(6) Upsilon(4S)-->BB decays collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC, we observe 467+/-33 signal decays and measure Spipi=-0.30+/-0.17(stat)+/-0.03(syst) and Cpipi=-0.09+/-0.15(stat)+/-0.04(syst).

  10. Dalitz-Plot Analysis of the Decays B+/- -> K+/- pi-/+ pi+/-

    SciTech Connect

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; Grauges, E.; Palano, A.; Pappagallo, M.; Pompili, A.; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /Pisa U. /INFN, Pisa /Prairie View A-M /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /University of South Carolina, Columbia, South Carolina 29208, USA /SLAC /Stanford U., Phys. Dept. /SUNY, Stony Brook /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Vanderbilt U. /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U. /Yale U.

    2005-10-04

    We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the state K{sup {+-}} {pi}{sup {-+}}{pi}{sup {+-}}. Using a sample of 226.0 {+-} 2.5 million B{bar B}pairs collected by the BABAR detector, measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes both charge conjugate decays. We present measurements of the corresponding branching and their charge asymmetries that supersede those of previous BABAR analyses. We find the asymmetries to be consistent with zero.

  11. Curved optical tubes in a 4Pi focusing system.

    PubMed

    Yan, Shaohui; Yu, Xianghua; Li, Manman; Yao, Baoli

    2015-08-24

    We demonstrate the possibility of creating curved optical tubes in a 4Pi focusing system. The focal fields of such optical tubes have interesting properties: the energy is concentered in the neighborhood of a prescribed three-dimensional (3D) curve while the cross section is of hollow shape. The creation of these optical tubes is based on the annular focal spot of a vortex beam, which is employed as a building block. An optical tube is thus obtained by covering the central-axis curve of the tube by various such building blocks. Each building block has a certain orientation and position, realized by a rotation plus a certain translation. The spatial spectrum (the input field as well) of the optical tube is obtained by linearly superposing the spectrum of each transformed building block. The curve is rather arbitrary. Three examples of optical tubes: a torus, a solenoid and a trefoil knot are given, showing a good agreement with the expected results. PMID:26368256

  12. Accounting for the differences in the structures and relative energies of the highly homoatomic np pi-np pi (n > or = 3)-bonded S2I4 2+, the Se-I pi-bonded Se2I4 2+, and their higher-energy isomers by AIM, MO, NBO, and VB methodologies.

    PubMed

    Brownridge, Scott; Crawford, Margaret-Jane; Du, Hongbin; Harcourt, Richard D; Knapp, Carsten; Laitinen, Risto S; Passmore, Jack; Rautiainen, J Mikko; Suontamo, Reijo J; Valkonen, Jussi

    2007-02-01

    The bonding in the highly homoatomic np pi-np pi (n > or = 3)-bonded S2I42+ (three sigma + two pi bonds), the Se-I pi-bonded Se2I42+ (four sigma + one pi bonds), and their higher-energy isomers have been studied using modern DFT and ab initio calculations and theoretical analysis methods: atoms in molecules (AIM), molecular orbital (MO), natural bond orbital (NBO), and valence bond (VB) analyses, giving their relative energies, theoretical bond orders, and atomic charges. The aim of this work was to seek theory-based answers to four main questions: (1) Are the previously proposed simple pi*-pi* bonding models valid for S2I42+ and Se2I42+? (2) What accounts for the difference in the structures of S2I42+ and Se2I42+? (3) Why are the classically bonded isolobal P2I4 and As2I4 structures not adopted? (4) Is the high experimentally observed S-S bond order supported by theoretical bond orders, and how does it relate to high bond orders between other heavier main group elements? The AIM analysis confirmed the high bond orders and established that the weak bonds observed in S2I42+ and Se2I42+ are real and the bonding in these cations is covalent in nature. The full MO analysis confirmed that S2I42+ contains three sigma and two pi bonds, that the positive charge is essentially equally distributed over all atoms, that the bonding between S2 and two I2+ units in S2I42+ is best described by two mutually perpendicular 4c2e pi*-pi* bonds, and that in Se2I42+, two SeI2+ moieties are joined by a 6c2e pi*-pi* bond, both in agreement with previously suggested models. The VB treatment provided a complementary approach to MO analysis and provided insight how the formation of the weak bonds affects the other bonds. The NBO analysis and the calculated AIM charges showed that the minimization of the electrostatic repulsion between EI2+ units (E = S, Se) and the delocalization of the positive charge are the main factors that explain why the nonclassical structures are favored for S2I42

  13. Accounting for the differences in the structures and relative energies of the highly homoatomic np pi-np pi (n > or = 3)-bonded S2I4 2+, the Se-I pi-bonded Se2I4 2+, and their higher-energy isomers by AIM, MO, NBO, and VB methodologies.

    PubMed

    Brownridge, Scott; Crawford, Margaret-Jane; Du, Hongbin; Harcourt, Richard D; Knapp, Carsten; Laitinen, Risto S; Passmore, Jack; Rautiainen, J Mikko; Suontamo, Reijo J; Valkonen, Jussi

    2007-02-01

    The bonding in the highly homoatomic np pi-np pi (n > or = 3)-bonded S2I42+ (three sigma + two pi bonds), the Se-I pi-bonded Se2I42+ (four sigma + one pi bonds), and their higher-energy isomers have been studied using modern DFT and ab initio calculations and theoretical analysis methods: atoms in molecules (AIM), molecular orbital (MO), natural bond orbital (NBO), and valence bond (VB) analyses, giving their relative energies, theoretical bond orders, and atomic charges. The aim of this work was to seek theory-based answers to four main questions: (1) Are the previously proposed simple pi*-pi* bonding models valid for S2I42+ and Se2I42+? (2) What accounts for the difference in the structures of S2I42+ and Se2I42+? (3) Why are the classically bonded isolobal P2I4 and As2I4 structures not adopted? (4) Is the high experimentally observed S-S bond order supported by theoretical bond orders, and how does it relate to high bond orders between other heavier main group elements? The AIM analysis confirmed the high bond orders and established that the weak bonds observed in S2I42+ and Se2I42+ are real and the bonding in these cations is covalent in nature. The full MO analysis confirmed that S2I42+ contains three sigma and two pi bonds, that the positive charge is essentially equally distributed over all atoms, that the bonding between S2 and two I2+ units in S2I42+ is best described by two mutually perpendicular 4c2e pi*-pi* bonds, and that in Se2I42+, two SeI2+ moieties are joined by a 6c2e pi*-pi* bond, both in agreement with previously suggested models. The VB treatment provided a complementary approach to MO analysis and provided insight how the formation of the weak bonds affects the other bonds. The NBO analysis and the calculated AIM charges showed that the minimization of the electrostatic repulsion between EI2+ units (E = S, Se) and the delocalization of the positive charge are the main factors that explain why the nonclassical structures are favored for S2I42

  14. Characteristics of 3-component Magnetic Fields of Equatorial Pi 2s - MAGDAS/CPMN Observations in Daytime and Nighttime -

    NASA Astrophysics Data System (ADS)

    Hirayama, Y.; Yumoto, K.; Uozumi, T.; Yoshikawa, A.; Group, M.

    2008-12-01

    .1 at DAV respectively. The amplitude ratio of H-component Pi 2s at DAV to CEB is found to be almost 1.5 constantly in night in all season, indicating the CA effect of equatorial Pi 2. The enhancement of the ratio of D-component to H- component at around sunrise and sunset may be explained by the meridional ionospheric current of equatorial Pi 2, but more future study is needed. Acknowledgements We appreciate the following Co-investigators for their contribution to the MAGDAS/CPMN project; Dr. Baylie Damtie(Bahir Dar University, AAB), Dr. Ronald Woodman Pollitt and Dr. Jose Ishitsuka (Instituto Geofisico del Peru, ANC), Dr. Roland Emerito S. Otadoy(University of San Carlos, CEB), Fr. Daniel McNamara(Manila Observatory, DAV), Dr. Severino L. G. Dutra(Brazilian National Space Research Institute, EUS) and Dr. Mazlan Othman and Dr. Mohd Fairos (National Space Agency, LKW). We appreciate Dr. Shinichi Watari(National Institute of Information and Communications Technology) providing the magnetic field data of YAP.

  15. International Agreement on Planetary Protection

    NASA Technical Reports Server (NTRS)

    2000-01-01

    The maintenance of a NASA policy, is consistent with international agreements. The planetary protection policy management in OSS, with Field Center support. The advice from internal and external advisory groups (NRC, NAC/Planetary Protection Task Force). The technology research and standards development in bioload characterization. The technology research and development in bioload reduction/sterilization. This presentation focuses on: forward contamination - research on the potential for Earth life to exist on other bodies, improved strategies for planetary navigation and collision avoidance, and improved procedures for sterile spacecraft assembly, cleaning and/or sterilization; and backward contamination - development of sample transfer and container sealing technologies for Earth return, improvement in sample return landing target assessment and navigation strategy, planning for sample hazard determination requirements and procedures, safety certification, (liaison to NEO Program Office for compositional data on small bodies), facility planning for sample recovery system, quarantine, and long-term curation of 4 returned samples.

  16. Observation of Anomalous {upsilon}(1S){pi}{sup +}{pi}{sup -} and {upsilon}(2S){pi}{sup +}{pi}{sup -} Production near the {upsilon}(5S) Resonance

    SciTech Connect

    Chen, K.-F.; Hou, W.-S.; Chang, P.; Chao, Y.; Hsiung, Y. B.; Lin, S.-W.; Shiu, J.-G.; Ueno, K.; Wang, C. C.; Wang, M.-Z.; Shapkin, M.; Sokolov, A.; Belous, K.; Adachi, I.; Brodzicka, J.; Haba, J.; Hazumi, M.; Itoh, R.; Iwasaki, Y.; Katayama, N.

    2008-03-21

    We report the first observation of e{sup +}e{sup -}{yields}{upsilon}(1S){pi}{sup +}{pi}{sup -}, {upsilon}(2S){pi}{sup +}{pi}{sup -}, and first evidence for e{sup +}e{sup -}{yields}{upsilon}(3S){pi}{sup +}{pi}{sup -}, {upsilon}(1S)K{sup +}K{sup -}, near the peak of the {upsilon}(5S) resonance at {radical}(s){approx}10.87 GeV. The results are based on a data sample of 21.7 fb{sup -1} collected with the Belle detector at the KEKB e{sup +}e{sup -} collider. Attributing the signals to the {upsilon}(5S) resonance, the partial widths {gamma}({upsilon}(5S){yields}{upsilon}(1S){pi}{sup +}{pi}{sup -})=0.59{+-}0.04(stat){+-}0.09(syst) MeV and {gamma}({upsilon}(5S){yields}{upsilon}(2S){pi}{sup +}{pi}{sup -})=0.85{+-}0.07(stat){+-}0.16(syst) MeV are obtained from the observed cross sections. These values exceed by more than 2 orders of magnitude the previously measured partial widths for dipion transitions between lower {upsilon} resonances.

  17. Minotaur is critical for primary piRNA biogenesis

    PubMed Central

    Vagin, Vasily V.; Yu, Yang; Jankowska, Anna; Luo, Yicheng; Wasik, Kaja A.; Malone, Colin D.; Harrison, Emily; Rosebrock, Adam; Wakimoto, Barbara T.; Fagegaltier, Delphine; Muerdter, Felix; Hannon, Gregory J.

    2013-01-01

    Piwi proteins and their associated small RNAs are essential for fertility in animals. In part, this is due to their roles in guarding germ cell genomes against the activity of mobile genetic elements. piRNA populations direct Piwi proteins to silence transposon targets and, as such, form a molecular code that discriminates transposons from endogenous genes. Information ultimately carried by piRNAs is encoded within genomic loci, termed piRNA clusters. These give rise to long, single-stranded, primary transcripts that are processed into piRNAs. Despite the biological importance of this pathway, neither the characteristics that define a locus as a source of piRNAs nor the mechanisms that catalyze primary piRNA biogenesis are well understood. We searched an EMS-mutant collection annotated for fertility phenotypes for genes involved in the piRNA pathway. Twenty-seven homozygous sterile strains showed transposon-silencing defects. One of these, which strongly impacted primary piRNA biogenesis, harbored a causal mutation in CG5508, a member of the Drosophila glycerol-3-phosphate O-acetyltransferase (GPAT) family. These enzymes catalyze the first acylation step on the path to the production of phosphatidic acid (PA). Though this pointed strongly to a function for phospholipid signaling in the piRNA pathway, a mutant form of CG5508, which lacks the GPAT active site, still functions in piRNA biogenesis. We have named this new biogenesis factor Minotaur. PMID:23788724

  18. Resonance Effective Theory Approach to {tau} {yields} 3{pi}{nu}{tau} Decays

    SciTech Connect

    Gomez Dumm, D.; Pich, A.; Portoles, J.

    2004-12-02

    The decays {tau} {yields} 3{pi}{nu}{tau} are analyzed in the framework of the resonance effective theory of QCD, We derive the effective chiral Lagrangian relevant for the evaluation of the hadronic axial-vector current, taking into account the constraints imposed by QCD on the high energy asymptotic behaviour. Then we fit the unknown parameters to the spectral function and branching ratio measured by ALEPH, showing that the theory is in good agreement with experimental data. A detailed description of the work sketched here can be found.

  19. Care management: agreement between nursing prescriptions and patients' care needs

    PubMed Central

    Faeda, Marília Silveira; Perroca, Márcia Galan

    2016-01-01

    ABSTRACT Objectives: analyze agreement between nursing prescriptions recorded in medical files and patients' care needs; investigate the correlation between the nurses' professional background and agreement of prescriptions. Method: descriptive study with quantitative and documentary approach conducted in the medical clinic, surgical, and specialized units of a university hospital in the interior of São Paulo, Brazil. The new validated version of a Patient Classification Instrument was used and 380 nursing prescriptions written at the times of hospital admission and discharge were assessed. Results: 75% of the nursing prescriptions items were compatible with the patients' care needs. Only low correlation between nursing prescription agreement and professional background was found. Conclusion: the nursing prescriptions did not fully meet the care needs of patients. The care context and work process should be analyzed to enable more effective prescriptions, while strategies to assess the care needs of patients are recommended. PMID:27508902

  20. Differential regulation of the renal sodium-phosphate cotransporters NaPi-IIa, NaPi-IIc, and PiT-2 in dietary potassium deficiency.

    PubMed

    Breusegem, Sophia Y; Takahashi, Hideaki; Giral-Arnal, Hector; Wang, Xiaoxin; Jiang, Tao; Verlander, Jill W; Wilson, Paul; Miyazaki-Anzai, Shinobu; Sutherland, Eileen; Caldas, Yupanqui; Blaine, Judith T; Segawa, Hiroko; Miyamoto, Ken-ichi; Barry, Nicholas P; Levi, Moshe

    2009-08-01

    Dietary potassium (K) deficiency is accompanied by phosphaturia and decreased renal brush border membrane (BBM) vesicle sodium (Na)-dependent phosphate (P(i)) transport activity. Our laboratory previously showed that K deficiency in rats leads to increased abundance in the proximal tubule BBM of the apical Na-P(i) cotransporter NaPi-IIa, but that the activity, diffusion, and clustering of NaPi-IIa could be modulated by the altered lipid composition of the K-deficient BBM (Zajicek HK, Wang H, Puttaparthi K, Halaihel N, Markovich D, Shayman J, Beliveau R, Wilson P, Rogers T, Levi M. Kidney Int 60: 694-704, 2001; Inoue M, Digman MA, Cheng M, Breusegem SY, Halaihel N, Sorribas V, Mantulin WW, Gratton E, Barry NP, Levi M. J Biol Chem 279: 49160-49171, 2004). Here we investigated the role of the renal Na-P(i) cotransporters NaPi-IIc and PiT-2 in K deficiency. Using Western blotting, immunofluorescence, and quantitative real-time PCR, we found that, in rats and in mice, K deficiency is associated with a dramatic decrease in the NaPi-IIc protein abundance in proximal tubular BBM and in NaPi-IIc mRNA. In addition, we documented the presence of a third Na-coupled P(i) transporter in the renal BBM, PiT-2, whose abundance is also decreased by dietary K deficiency in rats and in mice. Finally, electron microscopy showed subcellular redistribution of NaPi-IIc in K deficiency: in control rats, NaPi-IIc immunolabel was primarily in BBM microvilli, whereas, in K-deficient rats, NaPi-IIc BBM label was reduced, and immunolabel was prevalent in cytoplasmic vesicles. In summary, our results demonstrate that decreases in BBM abundance of the phosphate transporter NaPi-IIc and also PiT-2 might contribute to the phosphaturia of dietary K deficiency, and that the three renal BBM phosphate transporters characterized so far can be differentially regulated by dietary perturbations.

  1. Laser action in microcavities of pi-conjugated polymers

    NASA Astrophysics Data System (ADS)

    Polson, Randall C.

    Polymers, or plastics, are found in a variety of common products. They are used primarily in one of two ways, either as a container for something else or as an electrical insulator. Polymers known as pi-conjugated polymers have the remarkable property that they are electrically conductive. With some tricks, the conductivity can be pushed into the range of the best metallic conductors, such as copper. Electrically conducting pi-conjugated polymers have been the focus of much research. Along the way, other properties have been developed. The conjugated structure is the same as in several organic laser dyes. One discovered property is light emission with the application of an electric current, forming organic light emitting diodes. Another discovery is that the polymers can show stimulated emission. When placed in an optical resonance cavity, these polymers can exhibit laser action. This work is a study of a small class of conducting polymers that can be optically excited to produce laser emission. The organization is the following. Chapter 1 discusses the unique properties of conjugated polymers and reviews works concerning stimulated emission. Chapter 2 discusses the various experimental and theoretical tools necessary for investigation of laser emission and gives several recipes for creating samples. Chapter 3 is the first chapter that presents measurements of laser emission. An unconventional resonance cavity is used, a microring that consists of a thin coating of polymer on a supporting glass core. The emission spectra are measured, laser threshold is determined, coherence is established, and the emission modes are compared with a theoretical prediction. Chapter 4 discusses laser emission from microcavities formed with photolithographic techniques. The shapes investigated are a disk, a deformed disk, and connected disks. Laser emission spectra are presented with observed lasing thresholds. The deformed disk and connected disks are geometries with more complicated

  2. Agreement between Curry College and Curry College AAUP, 1984-86.

    ERIC Educational Resources Information Center

    Curry Coll., Milton, MA.

    The collective bargaining agreement between Curry College and the Curry College chapter (75 members) of the American Association of University Professors (AAUP) covering the period September 1984 to August 1986 is presented. Items covered in the agreement include: unit recognition and definitions, academic freedom, no discrimination, exchange of…

  3. An Analysis of the Arbitration Clause in Collective Bargaining Agreements in Higher Education.

    ERIC Educational Resources Information Center

    Douglas, Joel M., Ed.

    1985-01-01

    The arbitration provisions of collective bargaining agreements at unionized colleges and universities were analyzed for a sample of about 89,000 unionized faculty. The following 11 elements were analyzed with respect to frequency in collective agreements and assorted other contractual conditions: (1) time limits for submission of grievances; (2)…

  4. Nonelastic interactions of nucleons and pi mesons with complex nuclei at energies below 3 GeV.

    NASA Technical Reports Server (NTRS)

    Bertini, H. W.

    1972-01-01

    Calculation of nonelastic interactions corresponding to continuum-state transitions using the intranuclear-cascade evaporation approach. Spallation yields, energy- and angle-dependent spectra, particle multiplicities, and nonelastic cross sections are calculated for incident nucleons and pi mesons with energies below 3 GeV on complex nuclei. Comparisons with experimental data are made, and, in general, the agreement is good. Discrepancies in these comparisons are discussed with respect to the deficiencies in the model.

  5. Measurement of the dipion mass spectrum in X(3872) ---> J/psi pi+ pi- decays

    SciTech Connect

    Abulencia, A.; Acosta, D.; Adelman, Jahred A.; Affolder, Anthony A.; Akimoto, T.; Albrow, M.G.; Ambrose, D.; Amerio, S.; Amidei, D.; Anastassov, A.; Anikeev, K.; /Taiwan, Inst. Phys. /Argonne /Barcelona, IFAE /Baylor U. /INFN, Bologna /Bologna U. /Brandeis U. /UC, Davis /UCLA /UC, San Diego /UC, Santa Barbara

    2005-12-01

    The authors measure the dipion mass spectrum in X(3872) {yields} J/{psi}{pi}{sup +}{pi}{sup -} decays using 360 pb{sup -1} of {bar p}p collisions at {radical}s = 1.96 TeV collected with the CDF II detector. The spectrum is fit with predictions for odd C-parity ({sup 3}S{sub 1}, {sup 1}P{sub 1}, and {sup 3}D{sub J}) charmonia decaying to J/{psi}{pi}{sup +}{pi}{sup -}, as well as event C-parity states in which the pions are from {rho}{sup 0} decay. The latter case also encompasses exotic interpretations, such as a D{sup 0}{bar D}*{sup 0} molecule. Only the {sup 3}S{sub 1} and J/{psi} {rho} hypotheses are compatible with the data. Since {sup 3}S{sub 1} is untenable on other grounds, decay via J/{psi} {rho} is favored, which implies C = +1 for the X(3872). Models for different J/{psi}-{rho} angular momenta L are considered. Flexibility in the models, especially the introduction of {rho}-{omega} interference, enable good descriptions of the data for both L = 0 and 1.

  6. Transition nucleon resonance electrocouplings from CLAS data on pi+pi-p electroproduction off protons.

    SciTech Connect

    Victor Mokeev

    2011-10-01

    Electrocouplings of excited proton states with masses less than 1.8 GeV were determined for the first time from the CLAS data on {pi}{sup +}{pi}{sup -}p electroproduction at photon virtualities Q{sup 2} < 1.5 GeV {sup 2}. Electrocouplings were obtained from a combined fit of all available observables within the framework of a phenomenological reaction model. Accurate information on the Q{sup 2}-evolution of {gamma}{sub virt}NN* electrocouplings for many excited proton states with masses less than 1.8 GeV and at photon virtualities up to 1.5 GeV{sup 2} have become available from CLAS data on {pi}{sup +}{pi}{sup -}p electroproduction. These results open up new opportunities for theory to explore confinement mechanisms in the baryon sector through their manifestation in the structure of excited proton states of various quantum numbers, as it was outlined. The analysis reported here covers the range of photon virtualities, where both meson-baryon and quark degrees of freedom can be relevant. Our results on high lying N* electrocouplings for the first time make it possible to explore the transition from meson-baryon to quark degrees of freedom in the structure of excited proton states with masses above 1.6 GeV within the framework of dynamical coupled channel approaches under development in EBAC at Jefferson Lab.

  7. Measurement of CP-violation asymmetries in $D^0 \\to K_S \\pi^+ \\pi^-$

    SciTech Connect

    Aaltonen, T.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J.A.; Arisawa, T.; Artikov, A.; /Dubna, JINR /Texas A-M

    2012-07-01

    We report a measurement of time-integrated CP-violation asymmetries in the resonant substructure of the three-body decay D{sup 0} {yields} K{sub s}{sup 0}{pi}{sup +}{pi}{sup -} using CDF II data corresponding to 6.0 fb{sup -1} of integrated luminosity from Tevatron p{bar p} collisions at {radical}s=1.96 TeV. The charm mesons used in this analysis come from D*{sup +}(2010){yields}D*{sup -}{pi}{sup +} and D*-(2010){yields}{bar D}{sup 0}{pi}{sup -}, where the production flavor of the charm meson is determined by the charge of the accompanying pion. We apply a Dalitz-amplitude analysis for the description of the dynamic decay structure and use two complementary approaches, namely a full Dalitz-plot fit employing the isobar model for the contributing resonances and a model-independent bin-by-bin comparison of the D{sup 0} and {bar D}{sup -}{sup 0} Dalitz plots. We find no CP-violation effects and measure an asymmetry of A{sub CP}=(-0.05 {+-}0.57(stat){+-}0.54(syst))% for the overall integrated CP-violation asymmetry, CP-violation asymmetry, consistent with the standard model prediction.

  8. Measurement of the. pi. d. -->. pp reaction at T/sub. pi. / = 65 MeV

    SciTech Connect

    Ottermann, C.R.; Boschitz, E.T.; Gyles, W.; List, W.; Tacik, R.; Mango, S.; Konter, J.A.; van den Brandt, B.; Smith, G.R.

    1986-05-01

    The vector analyzing power iT/sub 11/ has been measured for the ..pi..d..-->..pp reaction at an incident pion energy of 65 MeV, using a vector polarized deuteron target. The data are compared with predictions from coupled channels, Faddeev, and perturbation theory calculations.

  9. Collapse of germline piRNAs in the absence of Argonaute3 reveals somatic piRNAs in flies.

    PubMed

    Li, Chengjian; Vagin, Vasily V; Lee, Soohyun; Xu, Jia; Ma, Shengmei; Xi, Hualin; Seitz, Hervé; Horwich, Michael D; Syrzycka, Monika; Honda, Barry M; Kittler, Ellen L W; Zapp, Maria L; Klattenhoff, Carla; Schulz, Nadine; Theurkauf, William E; Weng, Zhiping; Zamore, Phillip D

    2009-05-01

    Piwi-interacting RNAs (piRNAs) silence transposons in animal germ cells. piRNAs are thought to derive from long transcripts spanning transposon-rich genomic loci and to direct an autoamplification loop in which an antisense piRNA, bound to Aubergine or Piwi protein, triggers production of a sense piRNA bound to the PIWI protein Argonaute3 (Ago3). In turn, the new piRNA is envisioned to produce a second antisense piRNA. Here, we describe strong loss-of-function mutations in ago3, allowing a direct genetic test of this model. We find that Ago3 acts to amplify piRNA pools and to enforce on them an antisense bias, increasing the number of piRNAs that can act to silence transposons. We also detect a second, Ago3-independent piRNA pathway centered on Piwi. Transposons targeted by this second pathway often reside in the flamenco locus, which is expressed in somatic ovarian follicle cells, suggesting a role for piRNAs beyond the germline. PMID:19395009

  10. Regulation of Mammalian Autophagy by Class II and III PI 3-Kinases through PI3P Synthesis

    PubMed Central

    Devereaux, Kelly; Ogasawara, Yuta; Zhou, Xiang; Wang, Fan; Yamamoto, Akitsugu; De Camilli, Pietro; Di Paolo, Gilbert

    2013-01-01

    Synthesis of phosphatidylinositol-3-phosphate (PI3P) by Vps34, a class III phosphatidylinositol 3-kinase (PI3K), is critical for the initial steps of autophagosome (AP) biogenesis. Although Vps34 is the sole source of PI3P in budding yeast, mammalian cells can produce PI3P through alternate pathways, including direct synthesis by the class II PI3Ks; however, the physiological relevance of these alternate pathways in the context of autophagy is unknown. Here we generated Vps34 knockout mouse embryonic fibroblasts (MEFs) and using a higher affinity 4x-FYVE finger PI3P-binding probe found a Vps34-independent pool of PI3P accounting for ~35% of the total amount of this lipid species by biochemical analysis. Importantly, WIPI-1, an autophagy-relevant PI3P probe, still formed some puncta upon starvation-induced autophagy in Vps34 knockout MEFs. Additional characterization of autophagy by electron microscopy as well as protein degradation assays showed that while Vps34 is important for starvation-induced autophagy there is a significant component of functional autophagy occurring in the absence of Vps34. Given these findings, class II PI3Ks (α and β isoforms) were examined as potential positive regulators of autophagy. Depletion of class II PI3Ks reduced recruitment of WIPI-1 and LC3 to AP nucleation sites and caused an accumulation of the autophagy substrate, p62, which was exacerbated upon the concomitant ablation of Vps34. Our studies indicate that while Vps34 is the main PI3P source during autophagy, class II PI3Ks also significantly contribute to PI3P generation and regulate AP biogenesis. PMID:24098492

  11. Pi sensing and signalling: from prokaryotic to eukaryotic cells.

    PubMed

    Qi, Wanjun; Baldwin, Stephen A; Muench, Stephen P; Baker, Alison

    2016-06-15

    Phosphorus is one of the most important macronutrients and is indispensable for all organisms as a critical structural component as well as participating in intracellular signalling and energy metabolism. Sensing and signalling of phosphate (Pi) has been extensively studied and is well understood in single-cellular organisms like bacteria (Escherichia coli) and Saccharomyces cerevisiae In comparison, the mechanism of Pi regulation in plants is less well understood despite recent advances in this area. In most soils the available Pi limits crop yield, therefore a clearer understanding of the molecular basis underlying Pi sensing and signalling is of great importance for the development of plants with improved Pi use efficiency. This mini-review compares some of the main Pi regulation pathways in prokaryotic and eukaryotic cells and identifies similarities and differences among different organisms, as well as providing some insight into future research.

  12. piRNA clusters and open chromatin structure

    PubMed Central

    2014-01-01

    Transposable elements (TEs) are major structural components of eukaryotic genomes; however, mobilization of TEs generally has negative effects on the host genome. To counteract this threat, host cells have evolved genetic and epigenetic mechanisms that keep TEs silenced. One such mechanism involves the Piwi-piRNA complex, which represses TEs in animal gonads either by cleaving TE transcripts in the cytoplasm or by directing specific chromatin modifications at TE loci in the nucleus. Most Piwi-interacting RNAs (piRNAs) are derived from genomic piRNA clusters. There has been remarkable progress in our understanding of the mechanisms underlying piRNA biogenesis. However, little is known about how a specific locus in the genome is converted into a piRNA-producing site. In this review, we will discuss a possible link between chromatin boundaries and piRNA cluster formation. PMID:25126116

  13. Pi sensing and signalling: from prokaryotic to eukaryotic cells.

    PubMed

    Qi, Wanjun; Baldwin, Stephen A; Muench, Stephen P; Baker, Alison

    2016-06-15

    Phosphorus is one of the most important macronutrients and is indispensable for all organisms as a critical structural component as well as participating in intracellular signalling and energy metabolism. Sensing and signalling of phosphate (Pi) has been extensively studied and is well understood in single-cellular organisms like bacteria (Escherichia coli) and Saccharomyces cerevisiae In comparison, the mechanism of Pi regulation in plants is less well understood despite recent advances in this area. In most soils the available Pi limits crop yield, therefore a clearer understanding of the molecular basis underlying Pi sensing and signalling is of great importance for the development of plants with improved Pi use efficiency. This mini-review compares some of the main Pi regulation pathways in prokaryotic and eukaryotic cells and identifies similarities and differences among different organisms, as well as providing some insight into future research. PMID:27284040

  14. piRNAs and Their Functions in the Brain

    PubMed Central

    Zuo, Lingjun; Wang, Zhiren; Tan, Yunlong; Chen, Xiangning; Luo, Xingguang

    2016-01-01

    Piwi-interacting RNAs (piRNAs) are the non-coding RNAs with 24–32 nucleotides (nt). They exhibit stark differences in length, expression pattern, abundance, and genomic organization when compared to micro-RNAs (miRNAs). There are hundreds of thousands unique piRNA sequences in each species. Numerous piRNAs have been identified and deposited in public databases. Since the piRNAs were originally discovered and well-studied in the germline, a few other studies have reported the presence of piRNAs in somatic cells including neurons. This paper reviewed the common features, biogenesis, functions, and distributions of piRNAs and summarized their specific functions in the brain. This review may provide new insights and research direction for brain disorders. PMID:27512315

  15. Transformation of iron oxides on PI electrospun membranes

    NASA Astrophysics Data System (ADS)

    Li, Penggang; Lv, Fengzhu; Liu, Leipeng; Ding, Ling; Zhang, Yihe

    2016-09-01

    Iron oxides/PI fiber membranes, especially magnetic PI membranes, are important flexible porous materials available application in the field of wave absorption, magnetic recording, membrane separation and catalysts. Therefore, α-Fe2O3 loaded PI composite fibers were prepared by electrospinning of poly(amic acid) PAA solution followed by loading Fe3+ on the PAA membrane by ion-exchange and then imidization. Then the α-Fe2O3 on PI membrane were reduced by H2 to give magnetic PI membranes. The content of α-Fe2O3 and Fe3O4 on PI can be controlled by adjustment the ion-exchange time. The saturation magnetization of the composite membranes can reach up to 4 emu/g and the final composite membranes have magnetic response ability.

  16. ESO and NSF Sign Agreement on ALMA

    NASA Astrophysics Data System (ADS)

    2003-02-01

    Green Light for World's Most Powerful Radio Observatory On February 25, 2003, the European Southern Observatory (ESO) and the US National Science Foundation (NSF) are signing a historic agreement to construct and operate the world's largest and most powerful radio telescope, operating at millimeter and sub-millimeter wavelength. The Director General of ESO, Dr. Catherine Cesarsky, and the Director of the NSF, Dr. Rita Colwell, act for their respective organizations. Known as the Atacama Large Millimeter Array (ALMA), the future facility will encompass sixty-four interconnected 12-meter antennae at a unique, high-altitude site at Chajnantor in the Atacama region of northern Chile. ALMA is a joint project between Europe and North America. In Europe, ESO is leading on behalf of its ten member countries and Spain. In North America, the NSF also acts for the National Research Council of Canada and executes the project through the National Radio Astronomy Observatory (NRAO) operated by Associated Universities, Inc. (AUI). The conclusion of the ESO-NSF Agreement now gives the final green light for the ALMA project. The total cost of approximately 650 million Euro (or US Dollars) is shared equally between the two partners. Dr. Cesarsky is excited: "This agreement signifies the start of a great project of contemporary astronomy and astrophysics. Representing Europe, and in collaboration with many laboratories and institutes on this continent, we together look forward towards wonderful research projects. With ALMA we may learn how the earliest galaxies in the Universe really looked like, to mention but one of the many eagerly awaited opportunities with this marvellous facility". "With this agreement, we usher in a new age of research in astronomy" says Dr. Colwell. "By working together in this truly global partnership, the international astronomy community will be able to ensure the research capabilities needed to meet the long-term demands of our scientific enterprise, and

  17. Sexual Agreements among Gay Male Couples

    PubMed Central

    Hoff, Colleen H.; Beougher, Sean C.

    2009-01-01

    Many gay male couples make agreements about whether or not to permit sex with outside partners, yet little is known about the development and maintenance of these agreements, their impact on relationships, and whether they are an effective HIV prevention strategy. Using semi-structured, qualitative interviews, 39 gay male couples were asked about their sexual agreements and about other relationship dynamics that might affect their agreements. Analysis revealed a wide range of agreement types, all of which are presented along a continuum rather than as discrete categories. For couples with open agreements, most placed rules or conditions limiting when, where, how often, and with whom outside sex was permitted. Although motivations for having agreements varied, HIV prevention did not rank as a primary factor for any couple. Most couples had congruous agreements; however, a small number reported discrepancies which may increase HIV transmission risk. How couples handled breaks in their agreements also varied, depending on what condition was broken, whether it was disclosed, and the partner's reaction. Additional results include differences in agreement type and motivations for having an agreement based on couple serostatus. Overall, agreements benefited couples by providing boundaries for the relationship, supporting a non-heteronormative identity, and fulfilling the sexual needs of the couple. Future prevention efforts involving gay couples must address the range of agreement types and the meanings couples ascribe to them, in addition to tempering safety messages with the relationship issues that are important to and faced by gay couples. PMID:18686027

  18. 22 CFR 124.1 - Manufacturing license agreements and technical assistance agreements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Manufacturing license agreements and technical... ARMS REGULATIONS AGREEMENTS, OFF-SHORE PROCUREMENT AND OTHER DEFENSE SERVICES § 124.1 Manufacturing... manufacturing license agreements, technical assistance agreements, distribution agreements, or...

  19. 22 CFR 124.1 - Manufacturing license agreements and technical assistance agreements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Manufacturing license agreements and technical... ARMS REGULATIONS AGREEMENTS, OFF-SHORE PROCUREMENT AND OTHER DEFENSE SERVICES § 124.1 Manufacturing... manufacturing license agreements, technical assistance agreements, distribution agreements, or...

  20. 22 CFR 124.1 - Manufacturing license agreements and technical assistance agreements.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Manufacturing license agreements and technical... ARMS REGULATIONS AGREEMENTS, OFF-SHORE PROCUREMENT, AND OTHER DEFENSE SERVICES § 124.1 Manufacturing... manufacturing license agreements, technical assistance agreements, distribution agreements, or...

  1. 22 CFR 124.1 - Manufacturing license agreements and technical assistance agreements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Manufacturing license agreements and technical... ARMS REGULATIONS AGREEMENTS, OFF-SHORE PROCUREMENT AND OTHER DEFENSE SERVICES § 124.1 Manufacturing... manufacturing license agreements, technical assistance agreements, distribution agreements, or...

  2. 22 CFR 124.1 - Manufacturing license agreements and technical assistance agreements.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 22 Foreign Relations 1 2012-04-01 2012-04-01 false Manufacturing license agreements and technical... ARMS REGULATIONS AGREEMENTS, OFF-SHORE PROCUREMENT AND OTHER DEFENSE SERVICES § 124.1 Manufacturing... manufacturing license agreements, technical assistance agreements, distribution agreements, or...

  3. NETL-EERC ENVIRONMENTAL MANAGEMENT COOPERATIVE AGREEMENT

    SciTech Connect

    Christina B. Behr-Andres; Daniel J. Daly

    2001-07-31

    This final report summarizes the accomplishments of the 6-year Environmental Management Cooperative Agreement (EMCA) between the Energy and Environmental Research Center (EERC), a nonprofit, contract-supported unit of the University of North Dakota, and the U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL). The first portion of the report summarizes EMCA's structure, activities, and accomplishments. The appendix contains profiles of the individual EMCA tasks. Detailed descriptions and results of the tasks can be found separately in published Final Topical Reports. EMCA (DOE Contract No. DE-FC21-94MC31388) was in place from the fall of 1994 to the summer of 2001. Under EMCA, approximately $5.4 million was applied in three program areas to expedite the commercialization of 15 innovative technologies for application in DOE's EM Program ($3.8 million, or 69% of funds), provide technical support to the Deactivation and Decommissioning Focus Area (DDFA; $1.04 million, or 19% of funds), and provide for the coordination of the EMCA activities ($0.62 million, or 11% of funds). The following sections profile the overall accomplishments of the EMCA program followed by a summary of the accomplishments under each of the EMCA areas: commercialization, DDFA technical support, and management. Table 1 provides an overview of EMCA, including program areas, program activities, the duration and funding of each activity, and the associated industry partner, if appropriate.

  4. Cross Sections for the Reactions e+e to K+ K- pi+pi-, K+ K- pi0pi0, and K+ K- K+ K- Measured Using Initial-State Radiation

    SciTech Connect

    Lees, J.P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D.A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; Koch, H.; Schroeder, T.; Asgeirsson, D.J.; /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Trieste /INFN, Trieste /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Ferrara /Ferrara U. /Frascati /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Genoa /Genoa U. /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Milan /Milan U. /Mississippi U. /Montreal U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Naples /Naples U. /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Trieste /INFN, Trieste /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Padua /Padua U. /Paris U., VI-VII /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Perugia /Perugia U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Pisa /Princeton U. /INFN, Trieste /INFN, Trieste /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /INFN, Trieste /INFN, Trieste /INFN, Rome /Rome U. /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Southern Methodist U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas U. /Texas U., Dallas /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /INFN, Trieste /Trieste U. /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2011-08-19

    We study the processes e{sup +}e{sup -} {yields} K{sup +}K{sup -}{pi}{sup +}{pi}-{gamma}, K{sup +}K{sup -}{pi}{sup 0}{pi}{sup 0}{gamma}, and K{sup +}K{sup -}K{sup +}K{sup -}{gamma}, where the photon is radiated from the initial state. About 84000, 8000, and 4200 fully reconstructed events, respectively, are selected from 454 fb{sup -1} of BABAR data. The invariant mass of the hadronic final state defines the e{sup +}e{sup -} center-of-mass energy, so that the K{sup +}K{sup -}{pi}{sup +}{pi}{sup -}{gamma} data can be compared with direct measurements of the e{sup +}e{sup -} {yields} K{sup +}K{sup -}{pi}{sup +}{pi}{sup -} reaction. No direct measurements exist for the e{sup +}e{sup -} {yields} K{sup +}K{sup -}{pi}{sup 0}{pi}{sup 0} or e{sup +}e{sup -} {yields} K{sup +}K{sup -}K{sup +}K{sup -} reactions, and we present an update of our previous result with doubled statistics. Studying the structure of these events, we find contributions from a number of intermediate states, and extract their cross sections. In particular, we perform a more detailed study of the e{sup +}e{sup -} {yields} {phi}(1020){pi}{pi}{gamma} reaction, and confirm the presence of the Y (2175) resonance in the {phi}(1020)f{sub 0}(980) and K{sup +}K{sup -} f{sub 0}(980) modes. In the charmonium region, we observe the J/{psi} in all three final states and in several intermediate states, as well as the {phi}(2S) in some modes, and measure the corresponding branching fractions.

  5. The e+e- to to K+ K- \\pi+\\pi-, K+ K- \\pi0\\pi0 and K+ K- K+ K- Cross Sections Measured with Initial-State Radiation

    SciTech Connect

    Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A.; Garra Tico, J.; Grauges, E.; Lopez, L.; Palano, A.; Eigen, G.; Stugu, B.; Sun, L.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Button-Shafer, J.; Cahn, R.N.; /Energy Sci. Network /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Leipzig, Tech. Hochsch. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /Frascati /Genoa U. /Harvard U. /Heidelberg U. /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Karlsruhe U. /Paris U., VI-VII /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT, LNS /McGill U. /Milan U. /Mississippi U. /Concordia U., Montreal /Mt. Holyoke Coll. /Naples U. /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /Paris U., VI-VII /Pennsylvania U. /Perugia U. /Pisa U. /Prairie View A-M /Princeton U. /INFN, Rome /Rostock U. /Rutherford /DSM, DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /Trieste U. /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison /Yale U.

    2007-05-04

    We study the processes e{sup +}e{sup -} {yields} K{sup +}K{sup -}{pi}{sup +}{pi}{sup -}{gamma}, K{sup +}K{sup -}{pi}{sup 0}{pi}{sup 0}{gamma} and K{sup +}K{sup -}K{sup +}K{sup -}{gamma}, where the photon is radiated from the initial state. About 34600, 4400 and 2300 fully reconstructed events respectively, are selected from 232 fb{sup -1} of BABAR data. The invariant mass of the hadronic final state defines the effective e{sup +}e{sup -} center-of-mass energy, so that the K{sup +}K{sup -}{pi}{sup +}{pi}{sup -}{gamma} data can be compared with direct measurements of the e{sup +}e{sup -} {yields} K{sup +}K{sup -}{pi}{sup +}{pi}{sup -}{gamma} reaction; no direct measurements exist for the e{sub +}e{sub -} {yields} K{sup +}K{sup -}{pi}{sup 0}{pi}{sup 0}{gamma} or e{sub +}e{sub -} {yields} K{sup +}K{sup -}K{sup +}K{sup -} reactions. Studying the structure of these events, we find contributions from a number of intermediate states, and we extract their cross sections where possible. In particular, we isolate the contribution from e{sup +}e{sup -} {yields} {phi}(1020)f{sub 0}(980) and study its structure near threshold. In the charmonium region, we observe the J/{psi} in all three final states and several intermediate states, as well as the {psi}/(2S) in some modes, and measure the corresponding branching fractions. We see no signal for the Y(4260) and obtain an upper limit of {Beta}{sub Y(4260){yields}{phi}{pi}{sup +}{pi}{sup -}} {center_dot} {Lambda}{sub ee}{sup Y} < 0.4 eV at 90% C.L.

  6. International Agreement Will Advance Radio Astronomy

    NASA Astrophysics Data System (ADS)

    2007-12-01

    scheduled to be complete, with all 10 VLBA antennas upgraded, in August of 2008. The upgrade will make the VLBA's receiving system for 22 GHz 30 percent more sensitive. This will enhance the VLBA's capability to advance a key area of science using rotating disks of water molecules at the cores of distant galaxies to make precise measurements of the distances to those galaxies. This technique, first used in the late 1990s, can measure large cosmic distances directly, without relying on various assumptions required for more indirect techniques. The improved precision is important to resolving a number of frontier astrophysical problems, including the nature of the mysterious "dark energy" that appears to be accelerating the expansion of the Universe. This research project involves scientists from both MPIfR and NRAO, and, in addition to the VLBA, the Effelsberg telescope, the GBT and the VLA. The National Radio Astronomy Observatory is a facility of the National Science Foundation, operated under cooperative agreement by Associated Universities, Inc. The Max Planck Institute for Radio Astronomy is one of about 80 research institutes of the Max Planck Society for the Promotion of Research in Germany.

  7. Perceptions of patient provider agreements

    PubMed Central

    Albrecht, Jennifer S.; Khokhar, Bilal; Pradel, Françoise; Campbell, Michelle; Palmer, Jacqueline; Harris, Ilene; Palumbo, Francis

    2016-01-01

    Objectives Use of patient provider agreements (PPAs) is increasing, yet there is limited evidence on the effectiveness of PPAs to prevent prescription opioid misuse and diversion, and few guidelines for providers. We conducted eight focus groups to understand patient and prescriber perceptions of PPAs. Methods We recruited 40 patients who had been asked to sign a PPA and 40 prescribers who had administered at least one PPA. We developed topic guides for the two groups based on prior literature. Focus groups were audio-recorded and transcribed verbatim. Two investigators independently performed the content analysis of the transcripts and reached consensus on recurring themes. Key findings PPA use varied according to physician specialty. General practitioners used PPAs the least but reported increasing pressure from liability insurers to use them. Many patients reported signing a PPA in the emergency room of a hospital. Prescribers and patients reported a lack of understanding among patients concerning the purpose and content of the PPA. Prescribers questioned the legal status of the PPA, while patients believed that the PPA was a legal document intended to protect prescribers. Patients and prescribers valued PPA content items differently, although both groups agreed that signing a PPA would not prevent opioid misuse. Conclusions We identified several themes concerning the administration, content, effectiveness and utility of PPAs that highlight areas of research to improve PPAs. We also describe trends requiring further investigation. Understanding content of importance to patients will facilitate the development of a patient-centred PPA. PMID:27293486

  8. Monitoring of Biomedical License Agreements

    PubMed Central

    Keller, George H.; Ferguson, Steven M.; Pan, Percy

    2009-01-01

    Because technology licensed from research organizations can play a significant role in drug innovation and the generation of novel biomedical products, licensee performance under such agreements must be effectively monitored. This is necessary so that resultant benefits, including public health improvement, may be returned to the innovator(s) as well as society at large. The tasks that comprise monitoring are varied, but all come under the general heading of ‘enforcement of license provisions’. Since 1996, the license monitoring and enforcement program established by the US National Institutes of Health (NIH) Group has collected about $US17 million in unpaid and underpaid license royalties through formal financial audits and other investigative activities. During the same period, the Office of Technology Transfer (OTT) settled more than 60 cases of suspected patent infringement, generating around 60 new licenses and collected both back and ongoing royalties. As these numbers show, an active and effective monitoring program is an essential part of any technology transfer or biomedical licensing program. PMID:19960074

  9. 14 CFR 437.35 - Agreements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... TRANSPORTATION LICENSING EXPERIMENTAL PERMITS Requirements to Obtain an Experimental Permit Operational Safety Documentation § 437.35 Agreements. An applicant must enter into the agreements required by § 437.63, and...

  10. 14 CFR 437.35 - Agreements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... TRANSPORTATION LICENSING EXPERIMENTAL PERMITS Requirements to Obtain an Experimental Permit Operational Safety Documentation § 437.35 Agreements. An applicant must enter into the agreements required by § 437.63, and...

  11. 75 FR 61757 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-06

    ....: 012071-001. Title: APL/Hanjin Reciprocal Space Charter Agreement. Parties: American President Lines, Ltd... Agreement. Parties: Eagle Marine Services, Ltd.; Ports of America Outer Harbor Terminal, LLC; Port...

  12. 75 FR 150 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-04

    ... the members to address issues relating to environmental initiatives and the reduction of air and water pollution. Agreement No.: 012008-004. Title: The 360 Quality Association Agreement. Parties: NYKCool AB...

  13. 76 FR 12962 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-09

    ....gov . Agreement No.: 011885-002. Title: CMA CGM/MSC Reciprocal Space Charter, Sailing and Cooperative... Coast Two-Loop Space Charter, Sailing and Cooperative Working Agreement. Parties: A.P. Moller-Maersk...

  14. 37 CFR 42.409 - Settlement agreements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... OF COMMERCE TRIAL PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD Derivation After Institution of Derivation Proceeding § 42.409 Settlement agreements. An agreement or understanding under 35 U.S.C. 135(e)...

  15. 75 FR 31438 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-03

    ... Lines Joint Service Agreement. Filing Party: Tara L. Leiter, Esq.; Blank Rome, LLP; Watergate; 600 New... Service Agreement. Filing Party: Tara L. Leiter, Esq.; Blank Rome, LLP; Watergate; 600 New...

  16. 47 CFR 51.303 - Preexisting agreements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) COMMON CARRIER SERVICES (CONTINUED) INTERCONNECTION... interconnection agreements between an incumbent LEC and a telecommunications carrier, including those negotiated... approval pursuant to section 252(e) of the Act. (b) Interconnection agreements negotiated before February...

  17. 77 FR 71001 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-28

    ..., updates both parties address, and various other changes. Agreement No.: 012187-000. Title: Siem Car Carrier Pacific AS/Hoegh Autoliners, Inc. Space Charter Agreement. Parties: Siem Car Carrier Pacific...

  18. 32 CFR 37.1260 - Cooperative agreement.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... REGULATIONS TECHNOLOGY INVESTMENT AGREEMENTS Definitions of Terms Used in This Part § 37.1260 Cooperative... the cooperative agreement. The term does not include “cooperative research and development...

  19. 77 FR 1689 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-11

    ... . Agreement No.: 012150. Title: COSCON/POS Space Charter and Sailing Agreement. Parties: COSCO Container Lines... COSCO to charter space to Hainan POS in the trade between U.S. West Coast ports and ports in China...

  20. 75 FR 20849 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-21

    .... Agreement No.: 011075-073. Title: Central America Discussion Agreement. Parties: APL Co. PTE Ltd.; Crowley Latin America Services, LLC.; Dole Ocean Cargo Express; Great White Fleet; King Ocean Services...

  1. Study of the decay D0 --> K+pi-.

    PubMed

    Link, J M; Reyes, M; Yager, P M; Anjos, J C; Bediaga, I; Göbel, C; Magnin, J; Massafferi, A; de Miranda, J M; Pepe, I M; dos Reis, A C; Simão, F R; Carrillo, S; Casimiro, E; Sánchez-Hernández, A; Uribe, C; Vazquez, F; Cinquini, L; Cumalat, J P; O'Reilly, B; Ramirez, J E; Vaandering, E W; Butler, J N; Cheung, H W; Gaines, I; Garbincius, P H; Garren, L A; Gottschalk, E; Kasper, P H; Kreymer, A E; Kutschke, R; Bianco, S; Fabbri, F L; Sarwar, S; Zallo, A; Cawlfield, C; Kim, D Y; Rahimi, A; Wiss, J; Gardner, R; Chung, Y S; Kang, J S; Ko, B R; Kwak, J W; Lee, K B; Park, H; Alimonti, G; Boschini, M; Caccianiga, B; D'Angelo, P; DiCorato, M; Dini, P; Giammarchi, M; Inzani, P; Leveraro, F; Malvezzi, S; Menasce, D; Mezzadri, M; Milazzo, L; Moroni, L; Pedrini, D; Pontoglio, C; Prelz, F; Rovere, M; Sala, A; Sala, S; Davenport, T F; Agostino, L; Arena, V; Boca, G; Bonomi, G; Gianini, G; Liguori, G; Merlo, M; Pantea, D; Ratti, S P; Riccardi, C; Segoni, I; Viola, L; Vitulo, P; Hernandez, H; Lopez, A M; Mendez, H; Mendez, L; Mirles, A; Montiel, E; Olaya, D; Paris, A; Quinones, J; Rivera, C; Xiong, W; Zhang, Y; Wilson, J R; Cho, K; Handler, T; Engh, D; Hosack, M; Johns, W E; Nehring, M S; Sheldon, P D; Stenson, K; Webster, M S; Sheaff, M

    2001-04-01

    Using a large sample of photoproduced charm mesons from the FOCUS experiment at Fermilab (FNAL-E831), we observe the decay D0-->K+pi- with a signal yield of 149+/-31 events compared to a similarly cut sample consisting of 36 760+/-195 D0-->K-pi+ events. We use the observed ratio of D0-->K+pi- to D0-->K-pi+ (0.404+/-0.085+/-0.025)% to obtain a relationship between the D0 mixing and doubly Cabibbo suppressed decay parameters. PMID:11290081

  2. Legal issues critical in software license agreements.

    PubMed

    Manfredi, M J; Peterson, D M

    1989-05-01

    The complex legal aspects of software license agreements are addressed in this final part of a three-part series. A healthcare organization that has selected a software vendor and has reviewed the central provisions of a licensing agreement must then take a close look at the other provisions of the agreement. These include numerous legal provisions, regulatory requirements, and ancillary agreements related to maintenance and access to the software.

  3. Interobserver Reproducibility of the PI-RADS Version 2 Lexicon: A Multicenter Study of Six Experienced Prostate Radiologists.

    PubMed

    Rosenkrantz, Andrew B; Ginocchio, Luke A; Cornfeld, Daniel; Froemming, Adam T; Gupta, Rajan T; Turkbey, Baris; Westphalen, Antonio C; Babb, James S; Margolis, Daniel J

    2016-09-01

    Purpose To determine the interobserver reproducibility of the Prostate Imaging Reporting and Data System (PI-RADS) version 2 lexicon. Materials and Methods This retrospective HIPAA-compliant study was institutional review board-approved. Six radiologists from six separate institutions, all experienced in prostate magnetic resonance (MR) imaging, assessed prostate MR imaging examinations performed at a single center by using the PI-RADS lexicon. Readers were provided screen captures that denoted the location of one specific lesion per case. Analysis entailed two sessions (40 and 80 examinations per session) and an intersession training period for individualized feedback and group discussion. Percent agreement (fraction of pairwise reader combinations with concordant readings) was compared between sessions. κ coefficients were computed. Results No substantial difference in interobserver agreement was observed between sessions, and the sessions were subsequently pooled. Agreement for PI-RADS score of 4 or greater was 0.593 in peripheral zone (PZ) and 0.509 in transition zone (TZ). In PZ, reproducibility was moderate to substantial for features related to diffusion-weighted imaging (κ = 0.535-0.619); fair to moderate for features related to dynamic contrast material-enhanced (DCE) imaging (κ = 0.266-0.439); and fair for definite extraprostatic extension on T2-weighted images (κ = 0.289). In TZ, reproducibility for features related to lesion texture and margins on T2-weighted images ranged from 0.136 (moderately hypointense) to 0.529 (encapsulation). Among 63 lesions that underwent targeted biopsy, classification as PI-RADS score of 4 or greater by a majority of readers yielded tumor with a Gleason score of 3+4 or greater in 45.9% (17 of 37), without missing any tumor with a Gleason score of 3+4 or greater. Conclusion Experienced radiologists achieved moderate reproducibility for PI-RADS version 2, and neither required nor benefitted from a training session

  4. A healable supramolecular polymer blend based on aromatic pi-pi stacking and hydrogen-bonding interactions.

    PubMed

    Burattini, Stefano; Greenland, Barnaby W; Merino, Daniel Hermida; Weng, Wengui; Seppala, Jonathan; Colquhoun, Howard M; Hayes, Wayne; Mackay, Michael E; Hamley, Ian W; Rowan, Stuart J

    2010-09-01

    An elastomeric, healable, supramolecular polymer blend comprising a chain-folding polyimide and a telechelic polyurethane with pyrenyl end groups is compatibilized by aromatic pi-pi stacking between the pi-electron-deficient diimide groups and the pi-electron-rich pyrenyl units. This interpolymer interaction is the key to forming a tough, healable, elastomeric material. Variable-temperature FTIR analysis of the bulk material also conclusively demonstrates the presence of hydrogen bonding, which complements the pi-pi stacking interactions. Variable-temperature SAXS analysis shows that the healable polymeric blend has a nanophase-separated morphology and that the X-ray contrast between the two types of domain increases with increasing temperature, a feature that is repeatable over several heating and cooling cycles. A fractured sample of this material reproducibly regains more than 95% of the tensile modulus, 91% of the elongation to break, and 77% of the modulus of toughness of the pristine material.

  5. 34 CFR 84.620 - Cooperative agreement.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 34 Education 1 2010-07-01 2010-07-01 false Cooperative agreement. 84.620 Section 84.620 Education Office of the Secretary, Department of Education GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 84.620 Cooperative agreement. Cooperative agreement means an award...

  6. 23 CFR 633.206 - Project agreements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 23 Highways 1 2013-04-01 2013-04-01 false Project agreements. 633.206 Section 633.206 Highways... CONTRACT PROVISIONS Federal-Aid Contracts (Appalachian Contracts) § 633.206 Project agreements. (a) Project agreements executed for projects under the Appalachian program shall contain the following paragraphs:...

  7. 23 CFR 633.206 - Project agreements.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 23 Highways 1 2014-04-01 2014-04-01 false Project agreements. 633.206 Section 633.206 Highways... CONTRACT PROVISIONS Federal-Aid Contracts (Appalachian Contracts) § 633.206 Project agreements. (a) Project agreements executed for projects under the Appalachian program shall contain the following paragraphs:...

  8. 23 CFR 633.206 - Project agreements.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 23 Highways 1 2012-04-01 2012-04-01 false Project agreements. 633.206 Section 633.206 Highways... CONTRACT PROVISIONS Federal-Aid Contracts (Appalachian Contracts) § 633.206 Project agreements. (a) Project agreements executed for projects under the Appalachian program shall contain the following paragraphs:...

  9. 23 CFR 633.206 - Project agreements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 23 Highways 1 2011-04-01 2011-04-01 false Project agreements. 633.206 Section 633.206 Highways... CONTRACT PROVISIONS Federal-Aid Contracts (Appalachian Contracts) § 633.206 Project agreements. (a) Project agreements executed for projects under the Appalachian program shall contain the following paragraphs:...

  10. 19 CFR 118.3 - Written agreement.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 1 2013-04-01 2013-04-01 false Written agreement. 118.3 Section 118.3 Customs... CENTRALIZED EXAMINATION STATIONS General Provisions § 118.3 Written agreement. The applicant tentatively selected to operate a CES must sign a written agreement with CBP before commencing operations. Failure...

  11. 5 CFR 370.105 - Written agreements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Written agreements. 370.105 Section 370... TECHNOLOGY EXCHANGE PROGRAM § 370.105 Written agreements. Before the detail begins, the agency and private sector organization must enter into a written agreement with the individual(s) detailed. The...

  12. 19 CFR 118.3 - Written agreement.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 1 2011-04-01 2011-04-01 false Written agreement. 118.3 Section 118.3 Customs... CENTRALIZED EXAMINATION STATIONS General Provisions § 118.3 Written agreement. The applicant tentatively selected to operate a CES must sign a written agreement with CBP before commencing operations. Failure...

  13. 5 CFR 370.105 - Written agreements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Written agreements. 370.105 Section 370... TECHNOLOGY EXCHANGE PROGRAM § 370.105 Written agreements. Before the detail begins, the agency and private sector organization must enter into a written agreement with the individual(s) detailed. The...

  14. 19 CFR 118.3 - Written agreement.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 1 2014-04-01 2014-04-01 false Written agreement. 118.3 Section 118.3 Customs... CENTRALIZED EXAMINATION STATIONS General Provisions § 118.3 Written agreement. The applicant tentatively selected to operate a CES must sign a written agreement with CBP before commencing operations. Failure...

  15. 19 CFR 118.3 - Written agreement.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 1 2012-04-01 2012-04-01 false Written agreement. 118.3 Section 118.3 Customs... CENTRALIZED EXAMINATION STATIONS General Provisions § 118.3 Written agreement. The applicant tentatively selected to operate a CES must sign a written agreement with CBP before commencing operations. Failure...

  16. 5 CFR 370.105 - Written agreements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Written agreements. 370.105 Section 370... TECHNOLOGY EXCHANGE PROGRAM § 370.105 Written agreements. Before the detail begins, the agency and private sector organization must enter into a written agreement with the individual(s) detailed. The...

  17. 5 CFR 370.105 - Written agreements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Written agreements. 370.105 Section 370... TECHNOLOGY EXCHANGE PROGRAM § 370.105 Written agreements. Before the detail begins, the agency and private sector organization must enter into a written agreement with the individual(s) detailed. The...

  18. 78 FR 75345 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-12-11

    ...@fmc.gov . Agreement No.; 011314-002. Title: CSAV/Trans Global Cooperative Working Agreement. Parties: Compania Sud Americana de Vapores S.A. and Trans Global Shipping NV. Filing Party: Walter H. Lion Esq.; Mc... party Swordfish Shipping Inc. to Trans Global Shipping NV and changes the agreement's termination...

  19. 48 CFR 519.7010 - Agreement contents.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Agreement contents. 519... SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS GSA Mentor-Protégé Program 519.7010 Agreement contents. The contents of the Agreement must contain: (a) Names, addresses (including facsimile, e-mail, and...

  20. 48 CFR 519.7010 - Agreement contents.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Agreement contents. 519... SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS GSA Mentor-Protégé Program 519.7010 Agreement contents. The contents of the Agreement must contain: (a) Names, addresses (including facsimile, e-mail, and...

  1. 48 CFR 1819.7209 - Credit agreements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 6 2010-10-01 2010-10-01 true Credit agreements. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7209 Credit agreements. (a) The credit permits the mentor to include the cost it expends on a mentor-protégé agreement...

  2. 48 CFR 1819.7209 - Credit agreements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 6 2011-10-01 2011-10-01 false Credit agreements. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7209 Credit agreements. (a) The credit permits the mentor to include the cost it expends on a mentor-protégé agreement...

  3. 49 CFR 1325.2 - Credit agreements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 9 2011-10-01 2011-10-01 false Credit agreements. 1325.2 Section 1325.2... OF TRANSPORTATION (CONTINUED) CARRIER RATES AND SERVICE TERMS EXTENSION OF CREDIT TO CANDIDATES FOR FEDERAL OFFICE OR THEIR REPRESENTATIVES § 1325.2 Credit agreements. (a) All agreements to extend credit...

  4. 49 CFR 1325.2 - Credit agreements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 9 2010-10-01 2010-10-01 false Credit agreements. 1325.2 Section 1325.2... OF TRANSPORTATION (CONTINUED) CARRIER RATES AND SERVICE TERMS EXTENSION OF CREDIT TO CANDIDATES FOR FEDERAL OFFICE OR THEIR REPRESENTATIVES § 1325.2 Credit agreements. (a) All agreements to extend credit...

  5. 49 CFR 1325.2 - Credit agreements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 9 2012-10-01 2012-10-01 false Credit agreements. 1325.2 Section 1325.2... OF TRANSPORTATION (CONTINUED) CARRIER RATES AND SERVICE TERMS EXTENSION OF CREDIT TO CANDIDATES FOR FEDERAL OFFICE OR THEIR REPRESENTATIVES § 1325.2 Credit agreements. (a) All agreements to extend credit...

  6. 49 CFR 1325.2 - Credit agreements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 9 2013-10-01 2013-10-01 false Credit agreements. 1325.2 Section 1325.2... OF TRANSPORTATION (CONTINUED) CARRIER RATES AND SERVICE TERMS EXTENSION OF CREDIT TO CANDIDATES FOR FEDERAL OFFICE OR THEIR REPRESENTATIVES § 1325.2 Credit agreements. (a) All agreements to extend credit...

  7. 48 CFR 1819.7209 - Credit agreements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 6 2014-10-01 2014-10-01 false Credit agreements. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7209 Credit agreements. (a) The credit permits the mentor to include the cost it expends on a mentor-protégé agreement...

  8. 48 CFR 1819.7209 - Credit agreements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 6 2013-10-01 2013-10-01 false Credit agreements. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7209 Credit agreements. (a) The credit permits the mentor to include the cost it expends on a mentor-protégé agreement...

  9. 49 CFR 1325.2 - Credit agreements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 9 2014-10-01 2014-10-01 false Credit agreements. 1325.2 Section 1325.2... OF TRANSPORTATION (CONTINUED) CARRIER RATES AND SERVICE TERMS EXTENSION OF CREDIT TO CANDIDATES FOR FEDERAL OFFICE OR THEIR REPRESENTATIVES § 1325.2 Credit agreements. (a) All agreements to extend credit...

  10. 48 CFR 1819.7209 - Credit agreements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 6 2012-10-01 2012-10-01 false Credit agreements. 1819... ADMINISTRATION SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS NASA Mentor-Protégé Program 1819.7209 Credit agreements. (a) The credit permits the mentor to include the cost it expends on a mentor-protégé agreement...

  11. 77 FR 42310 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-18

    ... . Agreement No.: 012119-001. Title: Maersk Line/CMA CGM TP5 Space Charter Agreement. Parties: A.P. Moller... Glovis Co., Ltd. Space Charter Agreement. Parties: Siem Car Carrier Pacific AS; Hyundai Glovis Co., Ltd..., Japan, Philippines, Singapore, and China), and authorizes the mutual chartering of space between...

  12. 7 CFR 247.4 - Agreements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 4 2012-01-01 2012-01-01 false Agreements. 247.4 Section 247.4 Agriculture Regulations of the Department of Agriculture (Continued) FOOD AND NUTRITION SERVICE, DEPARTMENT OF AGRICULTURE CHILD NUTRITION PROGRAMS COMMODITY SUPPLEMENTAL FOOD PROGRAM § 247.4 Agreements. (a) What agreements are necessary for agencies to administer...

  13. 7 CFR 247.4 - Agreements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 4 2011-01-01 2011-01-01 false Agreements. 247.4 Section 247.4 Agriculture Regulations of the Department of Agriculture (Continued) FOOD AND NUTRITION SERVICE, DEPARTMENT OF AGRICULTURE CHILD NUTRITION PROGRAMS COMMODITY SUPPLEMENTAL FOOD PROGRAM § 247.4 Agreements. (a) What agreements are necessary for agencies to administer...

  14. 7 CFR 247.4 - Agreements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 4 2010-01-01 2010-01-01 false Agreements. 247.4 Section 247.4 Agriculture Regulations of the Department of Agriculture (Continued) FOOD AND NUTRITION SERVICE, DEPARTMENT OF AGRICULTURE CHILD NUTRITION PROGRAMS COMMODITY SUPPLEMENTAL FOOD PROGRAM § 247.4 Agreements. (a) What agreements are necessary for agencies to administer...

  15. 46 CFR Sec. 3 - Standby agreements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 8 2014-10-01 2014-10-01 false Standby agreements. Sec. 3 Section 3 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION B-CONTROL AND UTILIZATION OF PORTS FEDERAL PORT CONTROLLERS Sec. 3 Standby agreements. The Director, NSA, may negotiate the standard form of service agreement, specified...

  16. 46 CFR Sec. 3 - Standby agreements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 8 2013-10-01 2013-10-01 false Standby agreements. Sec. 3 Section 3 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION B-CONTROL AND UTILIZATION OF PORTS FEDERAL PORT CONTROLLERS Sec. 3 Standby agreements. The Director, NSA, may negotiate the standard form of service agreement, specified...

  17. 46 CFR Sec. 3 - Standby agreements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 8 2011-10-01 2011-10-01 false Standby agreements. Sec. 3 Section 3 Shipping MARITIME ADMINISTRATION, DEPARTMENT OF TRANSPORTATION B-CONTROL AND UTILIZATION OF PORTS FEDERAL PORT CONTROLLERS Sec. 3 Standby agreements. The Director, NSA, may negotiate the standard form of service agreement, specified...

  18. 76 FR 38177 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-29

    ... space in the trade from Vietnam to U.S. West Coast. Agreement No.: 012132. Title: Crowley/King Ocean Charter and Sailing Agreement. Parties: Crowley Latin America Services, LLC and King Ocean Services..., DC 20006. Synopsis: The agreement authorizes King Ocean to charter space to Crowley in the...

  19. 77 FR 28880 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-16

    ... geographic scope of the agreement. Agreement No.: 012170. Title: Crowley/SC Line Space Charter and Sailing Agreement. Parties: Crowley Latin America Services, LLC and SC Line. Filing Party: Wayne R. Rohde, Esquire... authorizes SC Line to charter space to Crowley in the trade between the U.S. Atlantic Coast and ports...

  20. 77 FR 5013 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  1. 77 FR 45610 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the...

  2. 78 FR 25443 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-01

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  3. 78 FR 23251 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-04-18

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  4. 76 FR 51033 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-17

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the...

  5. 76 FR 52954 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-24

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the...

  6. 77 FR 40881 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-11

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  7. 76 FR 31962 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-02

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  8. 76 FR 34992 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-15

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  9. 77 FR 50688 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the...

  10. 77 FR 54911 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-06

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  11. 78 FR 30302 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-22

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  12. 76 FR 81933 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-29

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to...

  13. 46 CFR 535.404 - Agreement provisions.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 9 2010-10-01 2010-10-01 false Agreement provisions. 535.404 Section 535.404 Shipping FEDERAL MARITIME COMMISSION REGULATIONS AFFECTING OCEAN SHIPPING IN FOREIGN COMMERCE OCEAN COMMON CARRIER AND MARINE TERMINAL OPERATOR AGREEMENTS SUBJECT TO THE SHIPPING ACT OF 1984 Filing of Agreements §...

  14. 48 CFR 416.702 - Basic agreements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Basic agreements. 416.702... CONTRACT TYPES TYPES OF CONTRACTS Agreements 416.702 Basic agreements. Promptly after execution by the Government, the HCA shall furnish to the Senior Procurement Executive a copy of each basic...

  15. 48 CFR 416.702 - Basic agreements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Basic agreements. 416.702... CONTRACT TYPES TYPES OF CONTRACTS Agreements 416.702 Basic agreements. Promptly after execution by the Government, the HCA shall furnish to the Senior Procurement Executive a copy of each basic...

  16. 48 CFR 416.702 - Basic agreements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Basic agreements. 416.702... CONTRACT TYPES TYPES OF CONTRACTS Agreements 416.702 Basic agreements. Promptly after execution by the Government, the HCA shall furnish to the Senior Procurement Executive a copy of each basic...

  17. 48 CFR 416.702 - Basic agreements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Basic agreements. 416.702... CONTRACT TYPES TYPES OF CONTRACTS Agreements 416.702 Basic agreements. Promptly after execution by the Government, the HCA shall furnish to the Senior Procurement Executive a copy of each basic...

  18. 48 CFR 416.702 - Basic agreements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Basic agreements. 416.702... CONTRACT TYPES TYPES OF CONTRACTS Agreements 416.702 Basic agreements. Promptly after execution by the Government, the HCA shall furnish to the Senior Procurement Executive a copy of each basic...

  19. 48 CFR 519.7010 - Agreement contents.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 48 Federal Acquisition Regulations System 4 2010-10-01 2010-10-01 false Agreement contents. 519... SOCIOECONOMIC PROGRAMS SMALL BUSINESS PROGRAMS GSA Mentor-Protégé Program 519.7010 Agreement contents. The contents of the Agreement must contain: (a) Names, addresses (including facsimile, e-mail, and...

  20. The Pros and Cons of Petroleum Agreements.

    ERIC Educational Resources Information Center

    Lipton, Charles J.

    1980-01-01

    A mineral agreements expert discusses the options open to tribes, from the most standard lease form to arrangements as yet untried by Indian Nations. Discussion covers 18 basic provisions for inclusion in agreements, tax considerations, and basic forms of petroleum agreements (leases, joint ventures, production sharing, and service contracts).…

  1. 5 CFR 370.105 - Written agreements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Written agreements. 370.105 Section 370... TECHNOLOGY EXCHANGE PROGRAM § 370.105 Written agreements. Before the detail begins, the agency and private sector organization must enter into a written agreement with the individual(s) detailed. The...

  2. 19 CFR 118.3 - Written agreement.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Written agreement. 118.3 Section 118.3 Customs... CENTRALIZED EXAMINATION STATIONS General Provisions § 118.3 Written agreement. The applicant tentatively selected to operate a CES must sign a written agreement with Customs before commencing operations....

  3. 78 FR 35649 - Negotiated Service Agreement

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-13

    ... Commission is noticing a recent Postal Service filing concerning an amendment to the 2013 Singapore Post... inbound market dominant services with Singapore Post Limited (2013 Agreement).\\1\\ The 2013 Agreement... Foreign Postal Operators 1 Negotiated Service Agreement (with Singapore Post Limited), June 4,...

  4. 29 CFR 102.62 - Election agreements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 2 2012-07-01 2012-07-01 false Election agreements. 102.62 Section 102.62 Labor... Act § 102.62 Election agreements. (a) Consent election agreements with final regional director determinations of post-election disputes. Where a petition has been duly filed, the employer and any...

  5. 29 CFR 102.62 - Election agreements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 2 2013-07-01 2013-07-01 false Election agreements. 102.62 Section 102.62 Labor... Act § 102.62 Election agreements. (a) Consent election agreements with final regional director determinations of post-election disputes. Where a petition has been duly filed, the employer and any...

  6. 10 CFR 607.620 - Cooperative agreement.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Cooperative agreement. 607.620 Section 607.620 Energy DEPARTMENT OF ENERGY (CONTINUED) ASSISTANCE REGULATIONS GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE) Definitions § 607.620 Cooperative agreement. Cooperative agreement means an award...

  7. 75 FR 3466 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-21

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the Secretary, Federal Maritime Commission,...

  8. 33 CFR 385.16 - Design agreements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Design agreements. 385.16 Section... Processes § 385.16 Design agreements. (a) The Corps of Engineers shall execute a design agreement with each non-Federal sponsor for the projects of the Plan prior to initiation of design activities with...

  9. 33 CFR 385.16 - Design agreements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Design agreements. 385.16 Section... Processes § 385.16 Design agreements. (a) The Corps of Engineers shall execute a design agreement with each non-Federal sponsor for the projects of the Plan prior to initiation of design activities with...

  10. 23 CFR 633.206 - Project agreements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 23 Highways 1 2010-04-01 2010-04-01 false Project agreements. 633.206 Section 633.206 Highways... CONTRACT PROVISIONS Federal-Aid Contracts (Appalachian Contracts) § 633.206 Project agreements. (a) Project agreements executed for projects under the Appalachian program shall contain the following paragraphs:...

  11. 23 CFR 140.606 - Project agreements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... projects. 1 The text of FHWA Form PR-2 is found in 23 CFR part 630, subpart C, appendix A. ... 23 Highways 1 2010-04-01 2010-04-01 false Project agreements. 140.606 Section 140.606 Highways... Reimbursement for Bond Issue Projects § 140.606 Project agreements. Project Agreements, Form PR-2, shall...

  12. 24 CFR 964.335 - Grant agreement.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 4 2013-04-01 2013-04-01 false Grant agreement. 964.335 Section... § 964.335 Grant agreement. (a) General. HUD will enter into a grant agreement with the recipients of a Family Investment Centers grant which defines the legal framework for the relationship between HUD and...

  13. 24 CFR 964.215 - Grant agreement.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 24 Housing and Urban Development 4 2013-04-01 2013-04-01 false Grant agreement. 964.215 Section... Grant agreement. (a) General. HUD shall enter into a grant agreement with the recipient of a technical assistance grant which defines the legal framework for the relationship between HUD and a resident council...

  14. 76 FR 76411 - Notice of Agreements Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-07

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreements Filed The Commission hereby gives notice of the filing of the following agreements under the Shipping Act of 1984. Interested parties may submit comments on the agreements to the Secretary, Federal Maritime Commission,...

  15. 78 FR 14546 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-03-06

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the Secretary, Federal Maritime Commission,...

  16. 76 FR 54235 - Notice of Agreement Filed

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-31

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION Notice of Agreement Filed The Commission hereby gives notice of the filing of the following agreement under the Shipping Act of 1984. Interested parties may submit comments on the agreement to the Secretary, Federal Maritime Commission,...

  17. 49 CFR 605.14 - Agreement.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... TRANSPORTATION SCHOOL BUS OPERATIONS School Bus Agreements § 605.14 Agreement. Except as provided in § 605.11 no... entered into a written agreement that the applicant will not engage in school bus operations exclusively for the transportation of students and school personnel in competition with private school...

  18. 49 CFR 605.14 - Agreement.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... TRANSPORTATION SCHOOL BUS OPERATIONS School Bus Agreements § 605.14 Agreement. Except as provided in § 605.11 no... entered into a written agreement that the applicant will not engage in school bus operations exclusively for the transportation of students and school personnel in competition with private school...

  19. 7 CFR 1775.13 - Grant agreement.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 12 2013-01-01 2013-01-01 false Grant agreement. 1775.13 Section 1775.13 Agriculture... (CONTINUED) TECHNICAL ASSISTANCE GRANTS Grant Application Processing § 1775.13 Grant agreement. Applicants selected for funding will complete a grant agreement, RUS Guide 1775-1, which outlines the terms...

  20. 7 CFR 1775.13 - Grant agreement.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 12 2012-01-01 2012-01-01 false Grant agreement. 1775.13 Section 1775.13 Agriculture... (CONTINUED) TECHNICAL ASSISTANCE GRANTS Grant Application Processing § 1775.13 Grant agreement. Applicants selected for funding will complete a grant agreement, RUS Guide 1775-1, which outlines the terms...